Finding the Fourth Proportional to 78,909, 108,894.42 and 45,375

Step by Step Solution

1. Step 1: Write the proportion equation
   78,909 : 108,894.42 = 45,375 : x
2. Step 2: Convert to fraction form
   78,909/108,894.42 = 45,375/x
3. Step 3: Cross multiply
   78,909x = 108,894.42 × 45,375
4. Step 4: Simplify right side
   78,909x = 4,941,084,307.50
5. Step 5: Solve for x
   x = 4,941,084,307.50/78,909
6. Step 6: Final answer
   x = 62,617.50