Finding the Fourth Proportional to 83,718.86, 126,153.80 and 69,251.86

Step by Step Solution

1. Step 1: Write the proportion equation
   83,718.86 : 126,153.80 = 69,251.86 : x
2. Step 2: Convert to fraction form
   83,718.86/126,153.80 = 69,251.86/x
3. Step 3: Cross multiply
   83,718.86x = 126,153.80 × 69,251.86
4. Step 4: Simplify right side
   83,718.86x = 8,736,384,665.30
5. Step 5: Solve for x
   x = 8,736,384,665.30/83,718.86
6. Step 6: Final answer
   x = 104,353.84