Finding the Fourth Proportional to 74,300.72, 111,439.56 and 21,696.08

Step by Step Solution

1. Step 1: Write the proportion equation
   74,300.72 : 111,439.56 = 21,696.08 : x
2. Step 2: Convert to fraction form
   74,300.72/111,439.56 = 21,696.08/x
3. Step 3: Cross multiply
   74,300.72x = 111,439.56 × 21,696.08
4. Step 4: Simplify right side
   74,300.72x = 2,417,801,608.92
5. Step 5: Solve for x
   x = 2,417,801,608.92/74,300.72
6. Step 6: Final answer
   x = 32,540.76