Finding the Fourth Proportional to 9,139.86, 13,710.48 and 2,566.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139.86 : 13,710.48 = 2,566.56 : x
2. Step 2: Convert to fraction form
   9,139.86/13,710.48 = 2,566.56/x
3. Step 3: Cross multiply
   9,139.86x = 13,710.48 × 2,566.56
4. Step 4: Simplify right side
   9,139.86x = 35,188,769.55
5. Step 5: Solve for x
   x = 35,188,769.55/9,139.86
6. Step 6: Final answer
   x = 3,850.03