Finding the Fourth Proportional to 37,743, 52,087.50 and 20,981.40

Step by Step Solution

1. Step 1: Write the proportion equation
   37,743 : 52,087.50 = 20,981.40 : x
2. Step 2: Convert to fraction form
   37,743/52,087.50 = 20,981.40/x
3. Step 3: Cross multiply
   37,743x = 52,087.50 × 20,981.40
4. Step 4: Simplify right side
   37,743x = 1,092,868,672.50
5. Step 5: Solve for x
   x = 1,092,868,672.50/37,743
6. Step 6: Final answer
   x = 28,955.53