Finding the Fourth Proportional to 78,655.28, 108,541.88 and 42,844.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,655.28 : 108,541.88 = 42,844.72 : x
2. Step 2: Convert to fraction form
   78,655.28/108,541.88 = 42,844.72/x
3. Step 3: Cross multiply
   78,655.28x = 108,541.88 × 42,844.72
4. Step 4: Simplify right side
   78,655.28x = 4,650,446,456.87
5. Step 5: Solve for x
   x = 4,650,446,456.87/78,655.28
6. Step 6: Final answer
   x = 59,124.40