Finding the Fourth Proportional to 86,726,612.52, 129,974,327.33 and 45,776,425.05

Step by Step Solution

1. Step 1: Write the proportion equation
   86,726,612.52 : 129,974,327.33 = 45,776,425.05 : x
2. Step 2: Convert to fraction form
   86,726,612.52/129,974,327.33 = 45,776,425.05/x
3. Step 3: Cross multiply
   86,726,612.52x = 129,974,327.33 × 45,776,425.05
4. Step 4: Simplify right side
   86,726,612.52x = 5,949,760,053,217,029
5. Step 5: Solve for x
   x = 5,949,760,053,217,029/86,726,612.52
6. Step 6: Final answer
   x = 68,603,625.58