Finding the Fourth Proportional to 37,113.72, 55,677.86 and 13,740.36

Step by Step Solution

1. Step 1: Write the proportion equation
   37,113.72 : 55,677.86 = 13,740.36 : x
2. Step 2: Convert to fraction form
   37,113.72/55,677.86 = 13,740.36/x
3. Step 3: Cross multiply
   37,113.72x = 55,677.86 × 13,740.36
4. Step 4: Simplify right side
   37,113.72x = 765,033,840.43
5. Step 5: Solve for x
   x = 765,033,840.43/37,113.72
6. Step 6: Final answer
   x = 20,613.24