Finding the Fourth Proportional to 111,876.98, 167,658.72 and 55,663.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,876.98 : 167,658.72 = 55,663.80 : x
2. Step 2: Convert to fraction form
   111,876.98/167,658.72 = 55,663.80/x
3. Step 3: Cross multiply
   111,876.98x = 167,658.72 × 55,663.80
4. Step 4: Simplify right side
   111,876.98x = 9,332,521,458.34
5. Step 5: Solve for x
   x = 9,332,521,458.34/111,876.98
6. Step 6: Final answer
   x = 83,417.71