Finding the Fourth Proportional to 208,965.42, 288,445.86 and 124,081.88

Step by Step Solution

1. Step 1: Write the proportion equation
   208,965.42 : 288,445.86 = 124,081.88 : x
2. Step 2: Convert to fraction form
   208,965.42/288,445.86 = 124,081.88/x
3. Step 3: Cross multiply
   208,965.42x = 288,445.86 × 124,081.88
4. Step 4: Simplify right side
   208,965.42x = 35,790,903,144.79
5. Step 5: Solve for x
   x = 35,790,903,144.79/208,965.42
6. Step 6: Final answer
   x = 171,276.68