Finding the Fourth Proportional to 10,123.29, 15,189.32 and 5,437.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.29 : 15,189.32 = 5,437.83 : x
2. Step 2: Convert to fraction form
   10,123.29/15,189.32 = 5,437.83/x
3. Step 3: Cross multiply
   10,123.29x = 15,189.32 × 5,437.83
4. Step 4: Simplify right side
   10,123.29x = 82,596,939.98
5. Step 5: Solve for x
   x = 82,596,939.98/10,123.29
6. Step 6: Final answer
   x = 8,159.10