Finding the Fourth Proportional to 52,809.32, 72,876.82 and 28,937.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,809.32 : 72,876.82 = 28,937.48 : x
2. Step 2: Convert to fraction form
   52,809.32/72,876.82 = 28,937.48/x
3. Step 3: Cross multiply
   52,809.32x = 72,876.82 × 28,937.48
4. Step 4: Simplify right side
   52,809.32x = 2,108,871,521.21
5. Step 5: Solve for x
   x = 2,108,871,521.21/52,809.32
6. Step 6: Final answer
   x = 39,933.70