Finding the Fourth Proportional to 12,870.19, 17,758.74 and 7,566.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.19 : 17,758.74 = 7,566.04 : x
2. Step 2: Convert to fraction form
   12,870.19/17,758.74 = 7,566.04/x
3. Step 3: Cross multiply
   12,870.19x = 17,758.74 × 7,566.04
4. Step 4: Simplify right side
   12,870.19x = 134,363,387.76
5. Step 5: Solve for x
   x = 134,363,387.76/12,870.19
6. Step 6: Final answer
   x = 10,439.89