Finding the Fourth Proportional to 86,580.42, 129,883.61 and 30,410.63

Step by Step Solution

1. Step 1: Write the proportion equation
   86,580.42 : 129,883.61 = 30,410.63 : x
2. Step 2: Convert to fraction form
   86,580.42/129,883.61 = 30,410.63/x
3. Step 3: Cross multiply
   86,580.42x = 129,883.61 × 30,410.63
4. Step 4: Simplify right side
   86,580.42x = 3,949,842,076.91
5. Step 5: Solve for x
   x = 3,949,842,076.91/86,580.42
6. Step 6: Final answer
   x = 45,620.50