Finding the Fourth Proportional to 55,672.50, 83,521.71 and 18,736.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,672.50 : 83,521.71 = 18,736.50 : x
2. Step 2: Convert to fraction form
   55,672.50/83,521.71 = 18,736.50/x
3. Step 3: Cross multiply
   55,672.50x = 83,521.71 × 18,736.50
4. Step 4: Simplify right side
   55,672.50x = 1,564,904,519.42
5. Step 5: Solve for x
   x = 1,564,904,519.42/55,672.50
6. Step 6: Final answer
   x = 28,109.11