Finding the Fourth Proportional to 111,168.40, 166,605.18 and 58,615.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,168.40 : 166,605.18 = 58,615.06 : x
2. Step 2: Convert to fraction form
   111,168.40/166,605.18 = 58,615.06/x
3. Step 3: Cross multiply
   111,168.40x = 166,605.18 × 58,615.06
4. Step 4: Simplify right side
   111,168.40x = 9,765,572,622.01
5. Step 5: Solve for x
   x = 9,765,572,622.01/111,168.40
6. Step 6: Final answer
   x = 87,844.86