Finding the Fourth Proportional to 52,756.23, 72,800.72 and 28,878.29

Step by Step Solution

1. Step 1: Write the proportion equation
   52,756.23 : 72,800.72 = 28,878.29 : x
2. Step 2: Convert to fraction form
   52,756.23/72,800.72 = 28,878.29/x
3. Step 3: Cross multiply
   52,756.23x = 72,800.72 × 28,878.29
4. Step 4: Simplify right side
   52,756.23x = 2,102,360,339.71
5. Step 5: Solve for x
   x = 2,102,360,339.71/52,756.23
6. Step 6: Final answer
   x = 39,850.47