Finding the Fourth Proportional to 103,174.78, 154,684.18 and 67,645.04

Step by Step Solution

1. Step 1: Write the proportion equation
   103,174.78 : 154,684.18 = 67,645.04 : x
2. Step 2: Convert to fraction form
   103,174.78/154,684.18 = 67,645.04/x
3. Step 3: Cross multiply
   103,174.78x = 154,684.18 × 67,645.04
4. Step 4: Simplify right side
   103,174.78x = 10,463,617,775.59
5. Step 5: Solve for x
   x = 10,463,617,775.59/103,174.78
6. Step 6: Final answer
   x = 101,416.43