Finding the Fourth Proportional to 78,684.98, 108,585.27 and 42,875.00

Step by Step Solution

1. Step 1: Write the proportion equation
   78,684.98 : 108,585.27 = 42,875.00 : x
2. Step 2: Convert to fraction form
   78,684.98/108,585.27 = 42,875.00/x
3. Step 3: Cross multiply
   78,684.98x = 108,585.27 × 42,875.00
4. Step 4: Simplify right side
   78,684.98x = 4,655,592,908.32
5. Step 5: Solve for x
   x = 4,655,592,908.32/78,684.98
6. Step 6: Final answer
   x = 59,167.50