Finding the Fourth Proportional to 122,399.36, 183,651.27 and 69,131.33

Step by Step Solution

1. Step 1: Write the proportion equation
   122,399.36 : 183,651.27 = 69,131.33 : x
2. Step 2: Convert to fraction form
   122,399.36/183,651.27 = 69,131.33/x
3. Step 3: Cross multiply
   122,399.36x = 183,651.27 × 69,131.33
4. Step 4: Simplify right side
   122,399.36x = 12,696,056,551.29
5. Step 5: Solve for x
   x = 12,696,056,551.29/122,399.36
6. Step 6: Final answer
   x = 103,726.49