Finding the Fourth Proportional to 78,677.52, 108,574.90 and 42,867.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,677.52 : 108,574.90 = 42,867.82 : x
2. Step 2: Convert to fraction form
   78,677.52/108,574.90 = 42,867.82/x
3. Step 3: Cross multiply
   78,677.52x = 108,574.90 × 42,867.82
4. Step 4: Simplify right side
   78,677.52x = 4,654,369,269.72
5. Step 5: Solve for x
   x = 4,654,369,269.72/78,677.52
6. Step 6: Final answer
   x = 59,157.55