Finding the Fourth Proportional to 78,946.73, 118,438.71 and 25,638.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,946.73 : 118,438.71 = 25,638.53 : x
2. Step 2: Convert to fraction form
   78,946.73/118,438.71 = 25,638.53/x
3. Step 3: Cross multiply
   78,946.73x = 118,438.71 × 25,638.53
4. Step 4: Simplify right side
   78,946.73x = 3,036,594,419.50
5. Step 5: Solve for x
   x = 3,036,594,419.50/78,946.73
6. Step 6: Final answer
   x = 38,463.84