Finding the Fourth Proportional to 78,109, 117,159.18 and 21,952.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,109 : 117,159.18 = 21,952.96 : x
2. Step 2: Convert to fraction form
   78,109/117,159.18 = 21,952.96/x
3. Step 3: Cross multiply
   78,109x = 117,159.18 × 21,952.96
4. Step 4: Simplify right side
   78,109x = 2,571,990,792.17
5. Step 5: Solve for x
   x = 2,571,990,792.17/78,109
6. Step 6: Final answer
   x = 32,928.23