Finding the Fourth Proportional to 78,564, 117,864.42 and 25,973.13

Step by Step Solution

1. Step 1: Write the proportion equation
   78,564 : 117,864.42 = 25,973.13 : x
2. Step 2: Convert to fraction form
   78,564/117,864.42 = 25,973.13/x
3. Step 3: Cross multiply
   78,564x = 117,864.42 × 25,973.13
4. Step 4: Simplify right side
   78,564x = 3,061,307,903.03
5. Step 5: Solve for x
   x = 3,061,307,903.03/78,564
6. Step 6: Final answer
   x = 38,965.78