Finding the Fourth Proportional to 78,948.02, 108,948.29 and 42,649.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,948.02 : 108,948.29 = 42,649.48 : x
2. Step 2: Convert to fraction form
   78,948.02/108,948.29 = 42,649.48/x
3. Step 3: Cross multiply
   78,948.02x = 108,948.29 × 42,649.48
4. Step 4: Simplify right side
   78,948.02x = 4,646,587,915.39
5. Step 5: Solve for x
   x = 4,646,587,915.39/78,948.02
6. Step 6: Final answer
   x = 58,856.29