Finding the Fourth Proportional to 78,032.84, 117,061.50 and 25,430.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,032.84 : 117,061.50 = 25,430.18 : x
2. Step 2: Convert to fraction form
   78,032.84/117,061.50 = 25,430.18/x
3. Step 3: Cross multiply
   78,032.84x = 117,061.50 × 25,430.18
4. Step 4: Simplify right side
   78,032.84x = 2,976,895,016.07
5. Step 5: Solve for x
   x = 2,976,895,016.07/78,032.84
6. Step 6: Final answer
   x = 38,149.26