Finding the Fourth Proportional to 12,735.72, 17,575.29 and 7,430.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.72 : 17,575.29 = 7,430.57 : x
2. Step 2: Convert to fraction form
   12,735.72/17,575.29 = 7,430.57/x
3. Step 3: Cross multiply
   12,735.72x = 17,575.29 × 7,430.57
4. Step 4: Simplify right side
   12,735.72x = 130,594,422.62
5. Step 5: Solve for x
   x = 130,594,422.62/12,735.72
6. Step 6: Final answer
   x = 10,254.18