Finding the Fourth Proportional to 9,103.32, 12,562.29 and 5,123.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.32 : 12,562.29 = 5,123.89 : x
2. Step 2: Convert to fraction form
   9,103.32/12,562.29 = 5,123.89/x
3. Step 3: Cross multiply
   9,103.32x = 12,562.29 × 5,123.89
4. Step 4: Simplify right side
   9,103.32x = 64,367,807.81
5. Step 5: Solve for x
   x = 64,367,807.81/9,103.32
6. Step 6: Final answer
   x = 7,070.81