Finding the Fourth Proportional to 101,993.11, 152,989.64 and 31,872.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,993.11 : 152,989.64 = 31,872.42 : x
2. Step 2: Convert to fraction form
   101,993.11/152,989.64 = 31,872.42/x
3. Step 3: Cross multiply
   101,993.11x = 152,989.64 × 31,872.42
4. Step 4: Simplify right side
   101,993.11x = 4,876,150,061.73
5. Step 5: Solve for x
   x = 4,876,150,061.73/101,993.11
6. Step 6: Final answer
   x = 47,808.62