Finding the Fourth Proportional to 78,872.76, 108,856.91 and 50,162.49

Step by Step Solution

1. Step 1: Write the proportion equation
   78,872.76 : 108,856.91 = 50,162.49 : x
2. Step 2: Convert to fraction form
   78,872.76/108,856.91 = 50,162.49/x
3. Step 3: Cross multiply
   78,872.76x = 108,856.91 × 50,162.49
4. Step 4: Simplify right side
   78,872.76x = 5,460,533,659.31
5. Step 5: Solve for x
   x = 5,460,533,659.31/78,872.76
6. Step 6: Final answer
   x = 69,232.19