Finding the Fourth Proportional to 78,781.50, 118,191.72 and 23,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,781.50 : 118,191.72 = 23,377.50 : x
2. Step 2: Convert to fraction form
   78,781.50/118,191.72 = 23,377.50/x
3. Step 3: Cross multiply
   78,781.50x = 118,191.72 × 23,377.50
4. Step 4: Simplify right side
   78,781.50x = 2,763,026,934.30
5. Step 5: Solve for x
   x = 2,763,026,934.30/78,781.50
6. Step 6: Final answer
   x = 35,072.03