Finding the Fourth Proportional to 51,238.33, 76,348.14 and 45,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,238.33 : 76,348.14 = 45,648.72 : x
2. Step 2: Convert to fraction form
   51,238.33/76,348.14 = 45,648.72/x
3. Step 3: Cross multiply
   51,238.33x = 76,348.14 × 45,648.72
4. Step 4: Simplify right side
   51,238.33x = 3,485,194,865.38
5. Step 5: Solve for x
   x = 3,485,194,865.38/51,238.33
6. Step 6: Final answer
   x = 68,019.29