Finding the Fourth Proportional to 111,108.78, 166,628.61 and 37,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,108.78 : 166,628.61 = 37,219.50 : x
2. Step 2: Convert to fraction form
   111,108.78/166,628.61 = 37,219.50/x
3. Step 3: Cross multiply
   111,108.78x = 166,628.61 × 37,219.50
4. Step 4: Simplify right side
   111,108.78x = 6,201,833,549.90
5. Step 5: Solve for x
   x = 6,201,833,549.90/111,108.78
6. Step 6: Final answer
   x = 55,817.67