Finding the Fourth Proportional to 11,429.64, 15,764.02 and 7,651.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,429.64 : 15,764.02 = 7,651.60 : x
2. Step 2: Convert to fraction form
   11,429.64/15,764.02 = 7,651.60/x
3. Step 3: Cross multiply
   11,429.64x = 15,764.02 × 7,651.60
4. Step 4: Simplify right side
   11,429.64x = 120,619,916.89
5. Step 5: Solve for x
   x = 120,619,916.89/11,429.64
6. Step 6: Final answer
   x = 10,553.26