Finding the Fourth Proportional to 72,654.20, 108,938.10 and 37,662.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,654.20 : 108,938.10 = 37,662.20 : x
2. Step 2: Convert to fraction form
   72,654.20/108,938.10 = 37,662.20/x
3. Step 3: Cross multiply
   72,654.20x = 108,938.10 × 37,662.20
4. Step 4: Simplify right side
   72,654.20x = 4,102,848,509.82
5. Step 5: Solve for x
   x = 4,102,848,509.82/72,654.20
6. Step 6: Final answer
   x = 56,470.91