Finding the Fourth Proportional to 12,948.16, 17,864.32 and 7,358.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948.16 : 17,864.32 = 7,358.08 : x
2. Step 2: Convert to fraction form
   12,948.16/17,864.32 = 7,358.08/x
3. Step 3: Cross multiply
   12,948.16x = 17,864.32 × 7,358.08
4. Step 4: Simplify right side
   12,948.16x = 131,447,095.71
5. Step 5: Solve for x
   x = 131,447,095.71/12,948.16
6. Step 6: Final answer
   x = 10,151.80