Finding the Fourth Proportional to 34,766.78, 47,978.18 and 18,851.28

Step by Step Solution

1. Step 1: Write the proportion equation
   34,766.78 : 47,978.18 = 18,851.28 : x
2. Step 2: Convert to fraction form
   34,766.78/47,978.18 = 18,851.28/x
3. Step 3: Cross multiply
   34,766.78x = 47,978.18 × 18,851.28
4. Step 4: Simplify right side
   34,766.78x = 904,450,010.81
5. Step 5: Solve for x
   x = 904,450,010.81/34,766.78
6. Step 6: Final answer
   x = 26,014.78