Finding the Fourth Proportional to 52,447.08, 72,377.72 and 28,574.16

Step by Step Solution

1. Step 1: Write the proportion equation
   52,447.08 : 72,377.72 = 28,574.16 : x
2. Step 2: Convert to fraction form
   52,447.08/72,377.72 = 28,574.16/x
3. Step 3: Cross multiply
   52,447.08x = 72,377.72 × 28,574.16
4. Step 4: Simplify right side
   52,447.08x = 2,068,132,551.72
5. Step 5: Solve for x
   x = 2,068,132,551.72/52,447.08
6. Step 6: Final answer
   x = 39,432.75