Finding the Fourth Proportional to 9,055.20, 12,499.25 and 5,703.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,055.20 : 12,499.25 = 5,703.63 : x
2. Step 2: Convert to fraction form
   9,055.20/12,499.25 = 5,703.63/x
3. Step 3: Cross multiply
   9,055.20x = 12,499.25 × 5,703.63
4. Step 4: Simplify right side
   9,055.20x = 71,291,097.28
5. Step 5: Solve for x
   x = 71,291,097.28/9,055.20
6. Step 6: Final answer
   x = 7,872.95