Finding the Fourth Proportional to 103,061.74, 154,330.16 and 67,894.78

Step by Step Solution

1. Step 1: Write the proportion equation
   103,061.74 : 154,330.16 = 67,894.78 : x
2. Step 2: Convert to fraction form
   103,061.74/154,330.16 = 67,894.78/x
3. Step 3: Cross multiply
   103,061.74x = 154,330.16 × 67,894.78
4. Step 4: Simplify right side
   103,061.74x = 10,478,211,535.27
5. Step 5: Solve for x
   x = 10,478,211,535.27/103,061.74
6. Step 6: Final answer
   x = 101,669.27