Finding the Fourth Proportional to 10,572.50, 14,590.06 and 5,857.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,572.50 : 14,590.06 = 5,857.08 : x
2. Step 2: Convert to fraction form
   10,572.50/14,590.06 = 5,857.08/x
3. Step 3: Cross multiply
   10,572.50x = 14,590.06 × 5,857.08
4. Step 4: Simplify right side
   10,572.50x = 85,455,148.62
5. Step 5: Solve for x
   x = 85,455,148.62/10,572.50
6. Step 6: Final answer
   x = 8,082.78