Finding the Fourth Proportional to 152,424.71, 229,050.72 and 81,396.75

Step by Step Solution

1. Step 1: Write the proportion equation
   152,424.71 : 229,050.72 = 81,396.75 : x
2. Step 2: Convert to fraction form
   152,424.71/229,050.72 = 81,396.75/x
3. Step 3: Cross multiply
   152,424.71x = 229,050.72 × 81,396.75
4. Step 4: Simplify right side
   152,424.71x = 18,643,984,193.16
5. Step 5: Solve for x
   x = 18,643,984,193.16/152,424.71
6. Step 6: Final answer
   x = 122,316.02