Finding the Fourth Proportional to 12,573.90, 17,349.39 and 7,536.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,573.90 : 17,349.39 = 7,536.78 : x
2. Step 2: Convert to fraction form
   12,573.90/17,349.39 = 7,536.78/x
3. Step 3: Cross multiply
   12,573.90x = 17,349.39 × 7,536.78
4. Step 4: Simplify right side
   12,573.90x = 130,758,535.56
5. Step 5: Solve for x
   x = 130,758,535.56/12,573.90
6. Step 6: Final answer
   x = 10,399.20