Finding the Fourth Proportional to 37,347.27, 55,987.29 and 13,638.27

Step by Step Solution

1. Step 1: Write the proportion equation
   37,347.27 : 55,987.29 = 13,638.27 : x
2. Step 2: Convert to fraction form
   37,347.27/55,987.29 = 13,638.27/x
3. Step 3: Cross multiply
   37,347.27x = 55,987.29 × 13,638.27
4. Step 4: Simplify right side
   37,347.27x = 763,569,777.59
5. Step 5: Solve for x
   x = 763,569,777.59/37,347.27
6. Step 6: Final answer
   x = 20,445.13