Finding the Fourth Proportional to 78,788.98, 118,204.53 and 34,419.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,788.98 : 118,204.53 = 34,419.34 : x
2. Step 2: Convert to fraction form
   78,788.98/118,204.53 = 34,419.34/x
3. Step 3: Cross multiply
   78,788.98x = 118,204.53 × 34,419.34
4. Step 4: Simplify right side
   78,788.98x = 4,068,521,907.61
5. Step 5: Solve for x
   x = 4,068,521,907.61/78,788.98
6. Step 6: Final answer
   x = 51,638.21