Finding the Fourth Proportional to 149,255.89, 205,622.71 and 103,855.91

Step by Step Solution

1. Step 1: Write the proportion equation
   149,255.89 : 205,622.71 = 103,855.91 : x
2. Step 2: Convert to fraction form
   149,255.89/205,622.71 = 103,855.91/x
3. Step 3: Cross multiply
   149,255.89x = 205,622.71 × 103,855.91
4. Step 4: Simplify right side
   149,255.89x = 21,355,132,375.96
5. Step 5: Solve for x
   x = 21,355,132,375.96/149,255.89
6. Step 6: Final answer
   x = 143,077.32