Finding the Fourth Proportional to 78,002.84, 117,016.42 and 25,400.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,002.84 : 117,016.42 = 25,400.10 : x
2. Step 2: Convert to fraction form
   78,002.84/117,016.42 = 25,400.10/x
3. Step 3: Cross multiply
   78,002.84x = 117,016.42 × 25,400.10
4. Step 4: Simplify right side
   78,002.84x = 2,972,228,769.64
5. Step 5: Solve for x
   x = 2,972,228,769.64/78,002.84
6. Step 6: Final answer
   x = 38,104.11