Finding the Fourth Proportional to 12,870.59, 17,764.92 and 7,567.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.59 : 17,764.92 = 7,567.13 : x
2. Step 2: Convert to fraction form
   12,870.59/17,764.92 = 7,567.13/x
3. Step 3: Cross multiply
   12,870.59x = 17,764.92 × 7,567.13
4. Step 4: Simplify right side
   12,870.59x = 134,429,459.08
5. Step 5: Solve for x
   x = 134,429,459.08/12,870.59
6. Step 6: Final answer
   x = 10,444.70