Finding the Fourth Proportional to 208,707.62, 288,016.61 and 118,061.69

Step by Step Solution

1. Step 1: Write the proportion equation
   208,707.62 : 288,016.61 = 118,061.69 : x
2. Step 2: Convert to fraction form
   208,707.62/288,016.61 = 118,061.69/x
3. Step 3: Cross multiply
   208,707.62x = 288,016.61 × 118,061.69
4. Step 4: Simplify right side
   208,707.62x = 34,003,725,694.28
5. Step 5: Solve for x
   x = 34,003,725,694.28/208,707.62
6. Step 6: Final answer
   x = 162,925.18