Finding the Fourth Proportional to 45,491.94, 68,248.29 and 13,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,491.94 : 68,248.29 = 13,906.50 : x
2. Step 2: Convert to fraction form
   45,491.94/68,248.29 = 13,906.50/x
3. Step 3: Cross multiply
   45,491.94x = 68,248.29 × 13,906.50
4. Step 4: Simplify right side
   45,491.94x = 949,094,844.89
5. Step 5: Solve for x
   x = 949,094,844.89/45,491.94
6. Step 6: Final answer
   x = 20,862.92