Finding the Fourth Proportional to 52,339.98, 72,258.77 and 40,052.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,339.98 : 72,258.77 = 40,052.31 : x
2. Step 2: Convert to fraction form
   52,339.98/72,258.77 = 40,052.31/x
3. Step 3: Cross multiply
   52,339.98x = 72,258.77 × 40,052.31
4. Step 4: Simplify right side
   52,339.98x = 2,894,130,456.00
5. Step 5: Solve for x
   x = 2,894,130,456.00/52,339.98
6. Step 6: Final answer
   x = 55,294.83