Finding the Fourth Proportional to 12,530.72, 17,284.80 and 8,281.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,530.72 : 17,284.80 = 8,281.82 : x
2. Step 2: Convert to fraction form
   12,530.72/17,284.80 = 8,281.82/x
3. Step 3: Cross multiply
   12,530.72x = 17,284.80 × 8,281.82
4. Step 4: Simplify right side
   12,530.72x = 143,149,602.34
5. Step 5: Solve for x
   x = 143,149,602.34/12,530.72
6. Step 6: Final answer
   x = 11,423.89