Finding the Fourth Proportional to 111,298.80, 166,970.10 and 41,178.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,298.80 : 166,970.10 = 41,178.72 : x
2. Step 2: Convert to fraction form
   111,298.80/166,970.10 = 41,178.72/x
3. Step 3: Cross multiply
   111,298.80x = 166,970.10 × 41,178.72
4. Step 4: Simplify right side
   111,298.80x = 6,875,614,996.27
5. Step 5: Solve for x
   x = 6,875,614,996.27/111,298.80
6. Step 6: Final answer
   x = 61,776.18