Finding the Fourth Proportional to 86,580.61, 129,883.89 and 30,410.82

Step by Step Solution

1. Step 1: Write the proportion equation
   86,580.61 : 129,883.89 = 30,410.82 : x
2. Step 2: Convert to fraction form
   86,580.61/129,883.89 = 30,410.82/x
3. Step 3: Cross multiply
   86,580.61x = 129,883.89 × 30,410.82
4. Step 4: Simplify right side
   86,580.61x = 3,949,875,713.73
5. Step 5: Solve for x
   x = 3,949,875,713.73/86,580.61
6. Step 6: Final answer
   x = 45,620.79