Finding the Fourth Proportional to 157,018.86, 216,742.38 and 93,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,018.86 : 216,742.38 = 93,356.50 : x
2. Step 2: Convert to fraction form
   157,018.86/216,742.38 = 93,356.50/x
3. Step 3: Cross multiply
   157,018.86x = 216,742.38 × 93,356.50
4. Step 4: Simplify right side
   157,018.86x = 20,234,309,998.47
5. Step 5: Solve for x
   x = 20,234,309,998.47/157,018.86
6. Step 6: Final answer
   x = 128,865.48