Finding the Fourth Proportional to 9,875.72, 13,632.18 and 6,149

Step by Step Solution

1. Step 1: Write the proportion equation
   9,875.72 : 13,632.18 = 6,149 : x
2. Step 2: Convert to fraction form
   9,875.72/13,632.18 = 6,149/x
3. Step 3: Cross multiply
   9,875.72x = 13,632.18 × 6,149
4. Step 4: Simplify right side
   9,875.72x = 83,824,274.82
5. Step 5: Solve for x
   x = 83,824,274.82/9,875.72
6. Step 6: Final answer
   x = 8,487.92