Finding the Fourth Proportional to 37,320, 55,985.76 and 13,949.76

Step by Step Solution

1. Step 1: Write the proportion equation
   37,320 : 55,985.76 = 13,949.76 : x
2. Step 2: Convert to fraction form
   37,320/55,985.76 = 13,949.76/x
3. Step 3: Cross multiply
   37,320x = 55,985.76 × 13,949.76
4. Step 4: Simplify right side
   37,320x = 780,987,915.42
5. Step 5: Solve for x
   x = 780,987,915.42/37,320
6. Step 6: Final answer
   x = 20,926.79