Finding the Fourth Proportional to 12,710.31, 17,540.25 and 7,045.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,710.31 : 17,540.25 = 7,045.16 : x
2. Step 2: Convert to fraction form
   12,710.31/17,540.25 = 7,045.16/x
3. Step 3: Cross multiply
   12,710.31x = 17,540.25 × 7,045.16
4. Step 4: Simplify right side
   12,710.31x = 123,573,779.99
5. Step 5: Solve for x
   x = 123,573,779.99/12,710.31
6. Step 6: Final answer
   x = 9,722.33