Finding the Fourth Proportional to 171,962.52, 258,085.92 and 87,784.88

Step by Step Solution

1. Step 1: Write the proportion equation
   171,962.52 : 258,085.92 = 87,784.88 : x
2. Step 2: Convert to fraction form
   171,962.52/258,085.92 = 87,784.88/x
3. Step 3: Cross multiply
   171,962.52x = 258,085.92 × 87,784.88
4. Step 4: Simplify right side
   171,962.52x = 22,656,041,516.89
5. Step 5: Solve for x
   x = 22,656,041,516.89/171,962.52
6. Step 6: Final answer
   x = 131,749.88