Finding the Fourth Proportional to 74,167.30, 111,510.15 and 72,612.10

Step by Step Solution

1. Step 1: Write the proportion equation
   74,167.30 : 111,510.15 = 72,612.10 : x
2. Step 2: Convert to fraction form
   74,167.30/111,510.15 = 72,612.10/x
3. Step 3: Cross multiply
   74,167.30x = 111,510.15 × 72,612.10
4. Step 4: Simplify right side
   74,167.30x = 8,096,986,162.82
5. Step 5: Solve for x
   x = 8,096,986,162.82/74,167.30
6. Step 6: Final answer
   x = 109,171.91