Finding the Fourth Proportional to 52,290.91, 72,162.01 and 28,417.58

Step by Step Solution

1. Step 1: Write the proportion equation
   52,290.91 : 72,162.01 = 28,417.58 : x
2. Step 2: Convert to fraction form
   52,290.91/72,162.01 = 28,417.58/x
3. Step 3: Cross multiply
   52,290.91x = 72,162.01 × 28,417.58
4. Step 4: Simplify right side
   52,290.91x = 2,050,670,123.29
5. Step 5: Solve for x
   x = 2,050,670,123.29/52,290.91
6. Step 6: Final answer
   x = 39,216.57