Finding the Fourth Proportional to 52,280.16, 72,147.27 and 28,407.23

Step by Step Solution

1. Step 1: Write the proportion equation
   52,280.16 : 72,147.27 = 28,407.23 : x
2. Step 2: Convert to fraction form
   52,280.16/72,147.27 = 28,407.23/x
3. Step 3: Cross multiply
   52,280.16x = 72,147.27 × 28,407.23
4. Step 4: Simplify right side
   52,280.16x = 2,049,504,092.76
5. Step 5: Solve for x
   x = 2,049,504,092.76/52,280.16
6. Step 6: Final answer
   x = 39,202.33