Finding the Fourth Proportional to 90,788,404.56, 125,141,639.40 and 61,409,022.96

Step by Step Solution

1. Step 1: Write the proportion equation
   90,788,404.56 : 125,141,639.40 = 61,409,022.96 : x
2. Step 2: Convert to fraction form
   90,788,404.56/125,141,639.40 = 61,409,022.96/x
3. Step 3: Cross multiply
   90,788,404.56x = 125,141,639.40 × 61,409,022.96
4. Step 4: Simplify right side
   90,788,404.56x = 7,684,825,807,166,641
5. Step 5: Solve for x
   x = 7,684,825,807,166,641/90,788,404.56
6. Step 6: Final answer
   x = 84,645,454.94