Finding the Fourth Proportional to 37,980.69, 52,408.88 and 20,983.92

Step by Step Solution

1. Step 1: Write the proportion equation
   37,980.69 : 52,408.88 = 20,983.92 : x
2. Step 2: Convert to fraction form
   37,980.69/52,408.88 = 20,983.92/x
3. Step 3: Cross multiply
   37,980.69x = 52,408.88 × 20,983.92
4. Step 4: Simplify right side
   37,980.69x = 1,099,743,483.17
5. Step 5: Solve for x
   x = 1,099,743,483.17/37,980.69
6. Step 6: Final answer
   x = 28,955.34