Finding the Fourth Proportional to 52,330.03, 72,216.81 and 28,458.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,330.03 : 72,216.81 = 28,458.10 : x
2. Step 2: Convert to fraction form
   52,330.03/72,216.81 = 28,458.10/x
3. Step 3: Cross multiply
   52,330.03x = 72,216.81 × 28,458.10
4. Step 4: Simplify right side
   52,330.03x = 2,055,153,200.66
5. Step 5: Solve for x
   x = 2,055,153,200.66/52,330.03
6. Step 6: Final answer
   x = 39,272.92