Finding the Fourth Proportional to 25,139.18, 37,708.86 and 8,499.36

Step by Step Solution

1. Step 1: Write the proportion equation
   25,139.18 : 37,708.86 = 8,499.36 : x
2. Step 2: Convert to fraction form
   25,139.18/37,708.86 = 8,499.36/x
3. Step 3: Cross multiply
   25,139.18x = 37,708.86 × 8,499.36
4. Step 4: Simplify right side
   25,139.18x = 320,501,176.33
5. Step 5: Solve for x
   x = 320,501,176.33/25,139.18
6. Step 6: Final answer
   x = 12,749.07