Finding the Fourth Proportional to 42,917,906,792.10, 64,376,860,188.15 and 42,917,906,792.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,917,906,792.10 : 64,376,860,188.15 = 42,917,906,792.10 : x
2. Step 2: Convert to fraction form
   42,917,906,792.10/64,376,860,188.15 = 42,917,906,792.10/x
3. Step 3: Cross multiply
   42,917,906,792.10x = 64,376,860,188.15 × 42,917,906,792.10
4. Step 4: Simplify right side
   42,917,906,792.10x = 2,762,920,085,123,074,883,584
5. Step 5: Solve for x
   x = 2,762,920,085,123,074,883,584/42,917,906,792.10
6. Step 6: Final answer
   x = 64,376,860,188.15