Finding the Fourth Proportional to 108,209.85, 149,425.35 and 67,443.55

Step by Step Solution

1. Step 1: Write the proportion equation
   108,209.85 : 149,425.35 = 67,443.55 : x
2. Step 2: Convert to fraction form
   108,209.85/149,425.35 = 67,443.55/x
3. Step 3: Cross multiply
   108,209.85x = 149,425.35 × 67,443.55
4. Step 4: Simplify right side
   108,209.85x = 10,077,775,726.77
5. Step 5: Solve for x
   x = 10,077,775,726.77/108,209.85
6. Step 6: Final answer
   x = 93,131.78