Finding the Fourth Proportional to 74,234.72, 111,355.86 and 21,648.18

Step by Step Solution

1. Step 1: Write the proportion equation
   74,234.72 : 111,355.86 = 21,648.18 : x
2. Step 2: Convert to fraction form
   74,234.72/111,355.86 = 21,648.18/x
3. Step 3: Cross multiply
   74,234.72x = 111,355.86 × 21,648.18
4. Step 4: Simplify right side
   74,234.72x = 2,410,651,701.33
5. Step 5: Solve for x
   x = 2,410,651,701.33/74,234.72
6. Step 6: Final answer
   x = 32,473.37