Finding the Fourth Proportional to 78,006.84, 117,022.42 and 25,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,006.84 : 117,022.42 = 25,404.10 : x
2. Step 2: Convert to fraction form
   78,006.84/117,022.42 = 25,404.10/x
3. Step 3: Cross multiply
   78,006.84x = 117,022.42 × 25,404.10
4. Step 4: Simplify right side
   78,006.84x = 2,972,849,259.92
5. Step 5: Solve for x
   x = 2,972,849,259.92/78,006.84
6. Step 6: Final answer
   x = 38,110.11