Finding the Fourth Proportional to 12,521.34, 17,278.17 and 7,484.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,521.34 : 17,278.17 = 7,484.58 : x
2. Step 2: Convert to fraction form
   12,521.34/17,278.17 = 7,484.58/x
3. Step 3: Cross multiply
   12,521.34x = 17,278.17 × 7,484.58
4. Step 4: Simplify right side
   12,521.34x = 129,319,845.62
5. Step 5: Solve for x
   x = 129,319,845.62/12,521.34
6. Step 6: Final answer
   x = 10,327.96