Finding the Fourth Proportional to 111,200.18, 166,810.50 and 36,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,200.18 : 166,810.50 = 36,320.72 : x
2. Step 2: Convert to fraction form
   111,200.18/166,810.50 = 36,320.72/x
3. Step 3: Cross multiply
   111,200.18x = 166,810.50 × 36,320.72
4. Step 4: Simplify right side
   111,200.18x = 6,058,676,629.51
5. Step 5: Solve for x
   x = 6,058,676,629.51/111,200.18
6. Step 6: Final answer
   x = 54,484.42