Finding the Fourth Proportional to 149,385, 206,155.62 and 82,321.32

Step by Step Solution

1. Step 1: Write the proportion equation
   149,385 : 206,155.62 = 82,321.32 : x
2. Step 2: Convert to fraction form
   149,385/206,155.62 = 82,321.32/x
3. Step 3: Cross multiply
   149,385x = 206,155.62 × 82,321.32
4. Step 4: Simplify right side
   149,385x = 16,971,002,763.82
5. Step 5: Solve for x
   x = 16,971,002,763.82/149,385
6. Step 6: Final answer
   x = 113,605.80