Finding the Fourth Proportional to 42,897,352,792.65, 64,355,337,761.00 and 13,050,908,252.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897,352,792.65 : 64,355,337,761.00 = 13,050,908,252.18 : x
2. Step 2: Convert to fraction form
   42,897,352,792.65/64,355,337,761.00 = 13,050,908,252.18/x
3. Step 3: Cross multiply
   42,897,352,792.65x = 64,355,337,761.00 × 13,050,908,252.18
4. Step 4: Simplify right side
   42,897,352,792.65x = 839,895,608,656,478,994,432
5. Step 5: Solve for x
   x = 839,895,608,656,478,994,432/42,897,352,792.65
6. Step 6: Final answer
   x = 19,579,194,378.64