Finding the Fourth Proportional to 72,708.86, 109,121.61 and 37,658.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,708.86 : 109,121.61 = 37,658.54 : x
2. Step 2: Convert to fraction form
   72,708.86/109,121.61 = 37,658.54/x
3. Step 3: Cross multiply
   72,708.86x = 109,121.61 × 37,658.54
4. Step 4: Simplify right side
   72,708.86x = 4,109,359,969.44
5. Step 5: Solve for x
   x = 4,109,359,969.44/72,708.86
6. Step 6: Final answer
   x = 56,518.01