Finding the Fourth Proportional to 78,096.24, 117,148.89 and 21,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,096.24 : 117,148.89 = 21,940.72 : x
2. Step 2: Convert to fraction form
   78,096.24/117,148.89 = 21,940.72/x
3. Step 3: Cross multiply
   78,096.24x = 117,148.89 × 21,940.72
4. Step 4: Simplify right side
   78,096.24x = 2,570,331,442.17
5. Step 5: Solve for x
   x = 2,570,331,442.17/78,096.24
6. Step 6: Final answer
   x = 32,912.36