Finding the Fourth Proportional to 10,123.72, 13,970.38 and 5,872.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.72 : 13,970.38 = 5,872.02 : x
2. Step 2: Convert to fraction form
   10,123.72/13,970.38 = 5,872.02/x
3. Step 3: Cross multiply
   10,123.72x = 13,970.38 × 5,872.02
4. Step 4: Simplify right side
   10,123.72x = 82,034,350.77
5. Step 5: Solve for x
   x = 82,034,350.77/10,123.72
6. Step 6: Final answer
   x = 8,103.18