Finding the Fourth Proportional to 54,259.27, 81,513.98 and 52,017.30

Step by Step Solution

1. Step 1: Write the proportion equation
   54,259.27 : 81,513.98 = 52,017.30 : x
2. Step 2: Convert to fraction form
   54,259.27/81,513.98 = 52,017.30/x
3. Step 3: Cross multiply
   54,259.27x = 81,513.98 × 52,017.30
4. Step 4: Simplify right side
   54,259.27x = 4,240,137,151.85
5. Step 5: Solve for x
   x = 4,240,137,151.85/54,259.27
6. Step 6: Final answer
   x = 78,145.86