Finding the Fourth Proportional to 154,311.63, 231,342.89 and 141,855.98

Step by Step Solution

1. Step 1: Write the proportion equation
   154,311.63 : 231,342.89 = 141,855.98 : x
2. Step 2: Convert to fraction form
   154,311.63/231,342.89 = 141,855.98/x
3. Step 3: Cross multiply
   154,311.63x = 231,342.89 × 141,855.98
4. Step 4: Simplify right side
   154,311.63x = 32,817,372,462.94
5. Step 5: Solve for x
   x = 32,817,372,462.94/154,311.63
6. Step 6: Final answer
   x = 212,669.47