Finding the Fourth Proportional to 52,792.18, 72,853.24 and 28,919.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,792.18 : 72,853.24 = 28,919.72 : x
2. Step 2: Convert to fraction form
   52,792.18/72,853.24 = 28,919.72/x
3. Step 3: Cross multiply
   52,792.18x = 72,853.24 × 28,919.72
4. Step 4: Simplify right side
   52,792.18x = 2,106,895,301.89
5. Step 5: Solve for x
   x = 2,106,895,301.89/52,792.18
6. Step 6: Final answer
   x = 39,909.23