Finding the Fourth Proportional to 12,538.48, 17,302.54 and 7,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,538.48 : 17,302.54 = 7,499.76 : x
2. Step 2: Convert to fraction form
   12,538.48/17,302.54 = 7,499.76/x
3. Step 3: Cross multiply
   12,538.48x = 17,302.54 × 7,499.76
4. Step 4: Simplify right side
   12,538.48x = 129,764,897.39
5. Step 5: Solve for x
   x = 129,764,897.39/12,538.48
6. Step 6: Final answer
   x = 10,349.33