Finding the Fourth Proportional to 52,281.15, 72,148.31 and 28,407.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,281.15 : 72,148.31 = 28,407.89 : x
2. Step 2: Convert to fraction form
   52,281.15/72,148.31 = 28,407.89/x
3. Step 3: Cross multiply
   52,281.15x = 72,148.31 × 28,407.89
4. Step 4: Simplify right side
   52,281.15x = 2,049,581,254.17
5. Step 5: Solve for x
   x = 2,049,581,254.17/52,281.15
6. Step 6: Final answer
   x = 39,203.06