Finding the Fourth Proportional to 72,067.25, 99,424.17 and 48,156.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,067.25 : 99,424.17 = 48,156.05 : x
2. Step 2: Convert to fraction form
   72,067.25/99,424.17 = 48,156.05/x
3. Step 3: Cross multiply
   72,067.25x = 99,424.17 × 48,156.05
4. Step 4: Simplify right side
   72,067.25x = 4,787,875,301.73
5. Step 5: Solve for x
   x = 4,787,875,301.73/72,067.25
6. Step 6: Final answer
   x = 66,436.21