Finding the Fourth Proportional to 93,240.50, 139,859.72 and 55,811.01

Step by Step Solution

1. Step 1: Write the proportion equation
   93,240.50 : 139,859.72 = 55,811.01 : x
2. Step 2: Convert to fraction form
   93,240.50/139,859.72 = 55,811.01/x
3. Step 3: Cross multiply
   93,240.50x = 139,859.72 × 55,811.01
4. Step 4: Simplify right side
   93,240.50x = 7,805,711,952.46
5. Step 5: Solve for x
   x = 7,805,711,952.46/93,240.50
6. Step 6: Final answer
   x = 83,715.90