Finding the Fourth Proportional to 12,948.66, 17,875.98 and 9,174.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948.66 : 17,875.98 = 9,174.96 : x
2. Step 2: Convert to fraction form
   12,948.66/17,875.98 = 9,174.96/x
3. Step 3: Cross multiply
   12,948.66x = 17,875.98 × 9,174.96
4. Step 4: Simplify right side
   12,948.66x = 164,011,401.46
5. Step 5: Solve for x
   x = 164,011,401.46/12,948.66
6. Step 6: Final answer
   x = 12,666.28