Finding the Fourth Proportional to 72,669.80, 109,074.30 and 37,634.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,669.80 : 109,074.30 = 37,634.60 : x
2. Step 2: Convert to fraction form
   72,669.80/109,074.30 = 37,634.60/x
3. Step 3: Cross multiply
   72,669.80x = 109,074.30 × 37,634.60
4. Step 4: Simplify right side
   72,669.80x = 4,104,967,650.78
5. Step 5: Solve for x
   x = 4,104,967,650.78/72,669.80
6. Step 6: Final answer
   x = 56,487.94