Finding the Fourth Proportional to 52,204.79, 72,042.66 and 28,331.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,204.79 : 72,042.66 = 28,331.48 : x
2. Step 2: Convert to fraction form
   52,204.79/72,042.66 = 28,331.48/x
3. Step 3: Cross multiply
   52,204.79x = 72,042.66 × 28,331.48
4. Step 4: Simplify right side
   52,204.79x = 2,041,074,820.72
5. Step 5: Solve for x
   x = 2,041,074,820.72/52,204.79
6. Step 6: Final answer
   x = 39,097.47