Finding the Fourth Proportional to 52,150.10, 78,253.88 and 28,456.65

Step by Step Solution

1. Step 1: Write the proportion equation
   52,150.10 : 78,253.88 = 28,456.65 : x
2. Step 2: Convert to fraction form
   52,150.10/78,253.88 = 28,456.65/x
3. Step 3: Cross multiply
   52,150.10x = 78,253.88 × 28,456.65
4. Step 4: Simplify right side
   52,150.10x = 2,226,843,132.02
5. Step 5: Solve for x
   x = 2,226,843,132.02/52,150.10
6. Step 6: Final answer
   x = 42,700.65