Finding the Fourth Proportional to 154,495.42, 213,093.53 and 141,789.55

Step by Step Solution

1. Step 1: Write the proportion equation
   154,495.42 : 213,093.53 = 141,789.55 : x
2. Step 2: Convert to fraction form
   154,495.42/213,093.53 = 141,789.55/x
3. Step 3: Cross multiply
   154,495.42x = 213,093.53 × 141,789.55
4. Step 4: Simplify right side
   154,495.42x = 30,214,435,726.61
5. Step 5: Solve for x
   x = 30,214,435,726.61/154,495.42
6. Step 6: Final answer
   x = 195,568.49