Finding the Fourth Proportional to 78,938.25, 118,426.05 and 25,630.13

Step by Step Solution

1. Step 1: Write the proportion equation
   78,938.25 : 118,426.05 = 25,630.13 : x
2. Step 2: Convert to fraction form
   78,938.25/118,426.05 = 25,630.13/x
3. Step 3: Cross multiply
   78,938.25x = 118,426.05 × 25,630.13
4. Step 4: Simplify right side
   78,938.25x = 3,035,275,056.89
5. Step 5: Solve for x
   x = 3,035,275,056.89/78,938.25
6. Step 6: Final answer
   x = 38,451.26