Finding the Fourth Proportional to 12,962.67, 19,425.77 and 7,407.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,962.67 : 19,425.77 = 7,407.69 : x
2. Step 2: Convert to fraction form
   12,962.67/19,425.77 = 7,407.69/x
3. Step 3: Cross multiply
   12,962.67x = 19,425.77 × 7,407.69
4. Step 4: Simplify right side
   12,962.67x = 143,900,082.17
5. Step 5: Solve for x
   x = 143,900,082.17/12,962.67
6. Step 6: Final answer
   x = 11,101.11