Finding the Fourth Proportional to 42,084,088.20, 58,116,150.54 and 39,791,378.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,084,088.20 : 58,116,150.54 = 39,791,378.88 : x
2. Step 2: Convert to fraction form
   42,084,088.20/58,116,150.54 = 39,791,378.88/x
3. Step 3: Cross multiply
   42,084,088.20x = 58,116,150.54 × 39,791,378.88
4. Step 4: Simplify right side
   42,084,088.20x = 2,312,521,765,184,256.50
5. Step 5: Solve for x
   x = 2,312,521,765,184,256.50/42,084,088.20
6. Step 6: Final answer
   x = 54,950,026.58