Finding the Fourth Proportional to 149,100.24, 205,763.04 and 85,458

Step by Step Solution

1. Step 1: Write the proportion equation
   149,100.24 : 205,763.04 = 85,458 : x
2. Step 2: Convert to fraction form
   149,100.24/205,763.04 = 85,458/x
3. Step 3: Cross multiply
   149,100.24x = 205,763.04 × 85,458
4. Step 4: Simplify right side
   149,100.24x = 17,584,097,872.32
5. Step 5: Solve for x
   x = 17,584,097,872.32/149,100.24
6. Step 6: Final answer
   x = 117,934.74