Finding the Fourth Proportional to 101,182.50, 139,632.39 and 56,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,182.50 : 139,632.39 = 56,470.50 : x
2. Step 2: Convert to fraction form
   101,182.50/139,632.39 = 56,470.50/x
3. Step 3: Cross multiply
   101,182.50x = 139,632.39 × 56,470.50
4. Step 4: Simplify right side
   101,182.50x = 7,885,110,879.50
5. Step 5: Solve for x
   x = 7,885,110,879.50/101,182.50
6. Step 6: Final answer
   x = 77,929.59