Finding the Fourth Proportional to 172,831.50, 238,507.56 and 93,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,831.50 : 238,507.56 = 93,343.50 : x
2. Step 2: Convert to fraction form
   172,831.50/238,507.56 = 93,343.50/x
3. Step 3: Cross multiply
   172,831.50x = 238,507.56 × 93,343.50
4. Step 4: Simplify right side
   172,831.50x = 22,263,130,426.86
5. Step 5: Solve for x
   x = 22,263,130,426.86/172,831.50
6. Step 6: Final answer
   x = 128,814.08