Finding the Fourth Proportional to 31,300.00, 43,187.18 and 18,546.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.00 : 43,187.18 = 18,546.81 : x
2. Step 2: Convert to fraction form
   31,300.00/43,187.18 = 18,546.81/x
3. Step 3: Cross multiply
   31,300.00x = 43,187.18 × 18,546.81
4. Step 4: Simplify right side
   31,300.00x = 800,984,167.21
5. Step 5: Solve for x
   x = 800,984,167.21/31,300.00
6. Step 6: Final answer
   x = 25,590.55