Finding the Fourth Proportional to 78,708.52, 108,617.84 and 42,898.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,708.52 : 108,617.84 = 42,898.56 : x
2. Step 2: Convert to fraction form
   78,708.52/108,617.84 = 42,898.56/x
3. Step 3: Cross multiply
   78,708.52x = 108,617.84 × 42,898.56
4. Step 4: Simplify right side
   78,708.52x = 4,659,548,926.31
5. Step 5: Solve for x
   x = 4,659,548,926.31/78,708.52
6. Step 6: Final answer
   x = 59,200.06