Finding the Fourth Proportional to 12,484.32, 17,237.04 and 7,770.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,484.32 : 17,237.04 = 7,770.72 : x
2. Step 2: Convert to fraction form
   12,484.32/17,237.04 = 7,770.72/x
3. Step 3: Cross multiply
   12,484.32x = 17,237.04 × 7,770.72
4. Step 4: Simplify right side
   12,484.32x = 133,944,211.47
5. Step 5: Solve for x
   x = 133,944,211.47/12,484.32
6. Step 6: Final answer
   x = 10,729.00