Finding the Fourth Proportional to 150,485.31, 207,690.89 and 93,143.03

Step by Step Solution

1. Step 1: Write the proportion equation
   150,485.31 : 207,690.89 = 93,143.03 : x
2. Step 2: Convert to fraction form
   150,485.31/207,690.89 = 93,143.03/x
3. Step 3: Cross multiply
   150,485.31x = 207,690.89 × 93,143.03
4. Step 4: Simplify right side
   150,485.31x = 19,344,957,293.83
5. Step 5: Solve for x
   x = 19,344,957,293.83/150,485.31
6. Step 6: Final answer
   x = 128,550.47