Finding the Fourth Proportional to 72,648.36, 100,251 and 48,771.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,648.36 : 100,251 = 48,771.72 : x
2. Step 2: Convert to fraction form
   72,648.36/100,251 = 48,771.72/x
3. Step 3: Cross multiply
   72,648.36x = 100,251 × 48,771.72
4. Step 4: Simplify right side
   72,648.36x = 4,889,413,701.72
5. Step 5: Solve for x
   x = 4,889,413,701.72/72,648.36
6. Step 6: Final answer
   x = 67,302.46