Finding the Fourth Proportional to 111,665.98, 167,478.31 and 50,861.91

Step by Step Solution

1. Step 1: Write the proportion equation
   111,665.98 : 167,478.31 = 50,861.91 : x
2. Step 2: Convert to fraction form
   111,665.98/167,478.31 = 50,861.91/x
3. Step 3: Cross multiply
   111,665.98x = 167,478.31 × 50,861.91
4. Step 4: Simplify right side
   111,665.98x = 8,518,266,730.17
5. Step 5: Solve for x
   x = 8,518,266,730.17/111,665.98
6. Step 6: Final answer
   x = 76,283.45