Finding the Fourth Proportional to 78,948.90, 108,949.50 and 42,650.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,948.90 : 108,949.50 = 42,650.35 : x
2. Step 2: Convert to fraction form
   78,948.90/108,949.50 = 42,650.35/x
3. Step 3: Cross multiply
   78,948.90x = 108,949.50 × 42,650.35
4. Step 4: Simplify right side
   78,948.90x = 4,646,734,307.33
5. Step 5: Solve for x
   x = 4,646,734,307.33/78,948.90
6. Step 6: Final answer
   x = 58,857.49