Finding the Fourth Proportional to 52,849.92, 72,932.88 and 28,976.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,849.92 : 72,932.88 = 28,976.10 : x
2. Step 2: Convert to fraction form
   52,849.92/72,932.88 = 28,976.10/x
3. Step 3: Cross multiply
   52,849.92x = 72,932.88 × 28,976.10
4. Step 4: Simplify right side
   52,849.92x = 2,113,310,424.17
5. Step 5: Solve for x
   x = 2,113,310,424.17/52,849.92
6. Step 6: Final answer
   x = 39,987.01