Finding the Fourth Proportional to 78,711.52, 108,621.98 and 42,901.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,711.52 : 108,621.98 = 42,901.56 : x
2. Step 2: Convert to fraction form
   78,711.52/108,621.98 = 42,901.56/x
3. Step 3: Cross multiply
   78,711.52x = 108,621.98 × 42,901.56
4. Step 4: Simplify right side
   78,711.52x = 4,660,052,392.29
5. Step 5: Solve for x
   x = 4,660,052,392.29/78,711.52
6. Step 6: Final answer
   x = 59,204.20