Finding the Fourth Proportional to 52,630.61, 72,630.74 and 28,757.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,630.61 : 72,630.74 = 28,757.28 : x
2. Step 2: Convert to fraction form
   52,630.61/72,630.74 = 28,757.28/x
3. Step 3: Cross multiply
   52,630.61x = 72,630.74 × 28,757.28
4. Step 4: Simplify right side
   52,630.61x = 2,088,662,326.32
5. Step 5: Solve for x
   x = 2,088,662,326.32/52,630.61
6. Step 6: Final answer
   x = 39,685.32