Finding the Fourth Proportional to 9,042.30, 12,477.78 and 5,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.30 : 12,477.78 = 5,062.50 : x
2. Step 2: Convert to fraction form
   9,042.30/12,477.78 = 5,062.50/x
3. Step 3: Cross multiply
   9,042.30x = 12,477.78 × 5,062.50
4. Step 4: Simplify right side
   9,042.30x = 63,168,761.25
5. Step 5: Solve for x
   x = 63,168,761.25/9,042.30
6. Step 6: Final answer
   x = 6,985.92