Finding the Fourth Proportional to 12,658.83, 17,471.35 and 7,356.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,658.83 : 17,471.35 = 7,356.72 : x
2. Step 2: Convert to fraction form
   12,658.83/17,471.35 = 7,356.72/x
3. Step 3: Cross multiply
   12,658.83x = 17,471.35 × 7,356.72
4. Step 4: Simplify right side
   12,658.83x = 128,531,863.30
5. Step 5: Solve for x
   x = 128,531,863.30/12,658.83
6. Step 6: Final answer
   x = 10,153.53