Finding the Fourth Proportional to 87,111.57, 130,635.98 and 30,170.06

Step by Step Solution

1. Step 1: Write the proportion equation
   87,111.57 : 130,635.98 = 30,170.06 : x
2. Step 2: Convert to fraction form
   87,111.57/130,635.98 = 30,170.06/x
3. Step 3: Cross multiply
   87,111.57x = 130,635.98 × 30,170.06
4. Step 4: Simplify right side
   87,111.57x = 3,941,294,777.00
5. Step 5: Solve for x
   x = 3,941,294,777.00/87,111.57
6. Step 6: Final answer
   x = 45,244.22