Finding the Fourth Proportional to 150,099.96, 207,158.22 and 86,436.12

Step by Step Solution

1. Step 1: Write the proportion equation
   150,099.96 : 207,158.22 = 86,436.12 : x
2. Step 2: Convert to fraction form
   150,099.96/207,158.22 = 86,436.12/x
3. Step 3: Cross multiply
   150,099.96x = 207,158.22 × 86,436.12
4. Step 4: Simplify right side
   150,099.96x = 17,905,952,762.91
5. Step 5: Solve for x
   x = 17,905,952,762.91/150,099.96
6. Step 6: Final answer
   x = 119,293.52