Finding the Fourth Proportional to 74,258.72, 111,376.56 and 21,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,258.72 : 111,376.56 = 21,662.72 : x
2. Step 2: Convert to fraction form
   74,258.72/111,376.56 = 21,662.72/x
3. Step 3: Cross multiply
   74,258.72x = 111,376.56 × 21,662.72
4. Step 4: Simplify right side
   74,258.72x = 2,412,719,233.84
5. Step 5: Solve for x
   x = 2,412,719,233.84/74,258.72
6. Step 6: Final answer
   x = 32,490.72