Finding the Fourth Proportional to 67,845.50, 101,686.50 and 25,116.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,845.50 : 101,686.50 = 25,116.78 : x
2. Step 2: Convert to fraction form
   67,845.50/101,686.50 = 25,116.78/x
3. Step 3: Cross multiply
   67,845.50x = 101,686.50 × 25,116.78
4. Step 4: Simplify right side
   67,845.50x = 2,554,037,449.47
5. Step 5: Solve for x
   x = 2,554,037,449.47/67,845.50
6. Step 6: Final answer
   x = 37,644.91