Finding the Fourth Proportional to 12,870.60, 17,764.92 and 7,567.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.60 : 17,764.92 = 7,567.12 : x
2. Step 2: Convert to fraction form
   12,870.60/17,764.92 = 7,567.12/x
3. Step 3: Cross multiply
   12,870.60x = 17,764.92 × 7,567.12
4. Step 4: Simplify right side
   12,870.60x = 134,429,281.43
5. Step 5: Solve for x
   x = 134,429,281.43/12,870.60
6. Step 6: Final answer
   x = 10,444.68