Finding the Fourth Proportional to 102,155.94, 153,361.49 and 69,022.89

Step by Step Solution

1. Step 1: Write the proportion equation
   102,155.94 : 153,361.49 = 69,022.89 : x
2. Step 2: Convert to fraction form
   102,155.94/153,361.49 = 69,022.89/x
3. Step 3: Cross multiply
   102,155.94x = 153,361.49 × 69,022.89
4. Step 4: Simplify right side
   102,155.94x = 10,585,452,909.39
5. Step 5: Solve for x
   x = 10,585,452,909.39/102,155.94
6. Step 6: Final answer
   x = 103,620.53