Finding the Fourth Proportional to 154,494.42, 213,092.15 and 141,788.55

Step by Step Solution

1. Step 1: Write the proportion equation
   154,494.42 : 213,092.15 = 141,788.55 : x
2. Step 2: Convert to fraction form
   154,494.42/213,092.15 = 141,788.55/x
3. Step 3: Cross multiply
   154,494.42x = 213,092.15 × 141,788.55
4. Step 4: Simplify right side
   154,494.42x = 30,214,026,964.88
5. Step 5: Solve for x
   x = 30,214,026,964.88/154,494.42
6. Step 6: Final answer
   x = 195,567.11