Finding the Fourth Proportional to 207,069.86, 285,756.89 and 116,426.61

Step by Step Solution

1. Step 1: Write the proportion equation
   207,069.86 : 285,756.89 = 116,426.61 : x
2. Step 2: Convert to fraction form
   207,069.86/285,756.89 = 116,426.61/x
3. Step 3: Cross multiply
   207,069.86x = 285,756.89 × 116,426.61
4. Step 4: Simplify right side
   207,069.86x = 33,269,705,404.71
5. Step 5: Solve for x
   x = 33,269,705,404.71/207,069.86
6. Step 6: Final answer
   x = 160,668.99