Finding the Fourth Proportional to 99,410.31, 148,835.61 and 74,565.99

Step by Step Solution

1. Step 1: Write the proportion equation
   99,410.31 : 148,835.61 = 74,565.99 : x
2. Step 2: Convert to fraction form
   99,410.31/148,835.61 = 74,565.99/x
3. Step 3: Cross multiply
   99,410.31x = 148,835.61 × 74,565.99
4. Step 4: Simplify right side
   99,410.31x = 11,098,074,606.90
5. Step 5: Solve for x
   x = 11,098,074,606.90/99,410.31
6. Step 6: Final answer
   x = 111,639.07