Finding the Fourth Proportional to 31,773.61, 43,853.30 and 18,343

Step by Step Solution

1. Step 1: Write the proportion equation
   31,773.61 : 43,853.30 = 18,343 : x
2. Step 2: Convert to fraction form
   31,773.61/43,853.30 = 18,343/x
3. Step 3: Cross multiply
   31,773.61x = 43,853.30 × 18,343
4. Step 4: Simplify right side
   31,773.61x = 804,401,081.90
5. Step 5: Solve for x
   x = 804,401,081.90/31,773.61
6. Step 6: Final answer
   x = 25,316.64