Finding the Fourth Proportional to 9,290.32, 12,766.10 and 7,424.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.32 : 12,766.10 = 7,424.08 : x
2. Step 2: Convert to fraction form
   9,290.32/12,766.10 = 7,424.08/x
3. Step 3: Cross multiply
   9,290.32x = 12,766.10 × 7,424.08
4. Step 4: Simplify right side
   9,290.32x = 94,776,547.69
5. Step 5: Solve for x
   x = 94,776,547.69/9,290.32
6. Step 6: Final answer
   x = 10,201.65