Finding the Fourth Proportional to 103,168.28, 154,752.47 and 68,099.74

Step by Step Solution

1. Step 1: Write the proportion equation
   103,168.28 : 154,752.47 = 68,099.74 : x
2. Step 2: Convert to fraction form
   103,168.28/154,752.47 = 68,099.74/x
3. Step 3: Cross multiply
   103,168.28x = 154,752.47 × 68,099.74
4. Step 4: Simplify right side
   103,168.28x = 10,538,601,857.10
5. Step 5: Solve for x
   x = 10,538,601,857.10/103,168.28
6. Step 6: Final answer
   x = 102,149.63