Finding the Fourth Proportional to 150,607.72, 207,839.46 and 83,539.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,607.72 : 207,839.46 = 83,539.72 : x
2. Step 2: Convert to fraction form
   150,607.72/207,839.46 = 83,539.72/x
3. Step 3: Cross multiply
   150,607.72x = 207,839.46 × 83,539.72
4. Step 4: Simplify right side
   150,607.72x = 17,362,850,293.35
5. Step 5: Solve for x
   x = 17,362,850,293.35/150,607.72
6. Step 6: Final answer
   x = 115,285.26