Finding the Fourth Proportional to 78,537.18, 108,381.27 and 42,727.15

Step by Step Solution

1. Step 1: Write the proportion equation
   78,537.18 : 108,381.27 = 42,727.15 : x
2. Step 2: Convert to fraction form
   78,537.18/108,381.27 = 42,727.15/x
3. Step 3: Cross multiply
   78,537.18x = 108,381.27 × 42,727.15
4. Step 4: Simplify right side
   78,537.18x = 4,630,822,780.48
5. Step 5: Solve for x
   x = 4,630,822,780.48/78,537.18
6. Step 6: Final answer
   x = 58,963.45