Finding the Fourth Proportional to 37,970.88, 52,400.52 and 20,976

Step by Step Solution

1. Step 1: Write the proportion equation
   37,970.88 : 52,400.52 = 20,976 : x
2. Step 2: Convert to fraction form
   37,970.88/52,400.52 = 20,976/x
3. Step 3: Cross multiply
   37,970.88x = 52,400.52 × 20,976
4. Step 4: Simplify right side
   37,970.88x = 1,099,153,307.52
5. Step 5: Solve for x
   x = 1,099,153,307.52/37,970.88
6. Step 6: Final answer
   x = 28,947.27