Finding the Fourth Proportional to 78,326.55, 108,092.56 and 42,516.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,326.55 : 108,092.56 = 42,516.47 : x
2. Step 2: Convert to fraction form
   78,326.55/108,092.56 = 42,516.47/x
3. Step 3: Cross multiply
   78,326.55x = 108,092.56 × 42,516.47
4. Step 4: Simplify right side
   78,326.55x = 4,595,714,084.46
5. Step 5: Solve for x
   x = 4,595,714,084.46/78,326.55
6. Step 6: Final answer
   x = 58,673.77