Finding the Fourth Proportional to 86,552.67, 129,885.76 and 30,391.33

Step by Step Solution

1. Step 1: Write the proportion equation
   86,552.67 : 129,885.76 = 30,391.33 : x
2. Step 2: Convert to fraction form
   86,552.67/129,885.76 = 30,391.33/x
3. Step 3: Cross multiply
   86,552.67x = 129,885.76 × 30,391.33
4. Step 4: Simplify right side
   86,552.67x = 3,947,400,345.03
5. Step 5: Solve for x
   x = 3,947,400,345.03/86,552.67
6. Step 6: Final answer
   x = 45,606.92