Finding the Fourth Proportional to 37,768.16, 52,120.32 and 21,002.24

Step by Step Solution

1. Step 1: Write the proportion equation
   37,768.16 : 52,120.32 = 21,002.24 : x
2. Step 2: Convert to fraction form
   37,768.16/52,120.32 = 21,002.24/x
3. Step 3: Cross multiply
   37,768.16x = 52,120.32 × 21,002.24
4. Step 4: Simplify right side
   37,768.16x = 1,094,643,469.52
5. Step 5: Solve for x
   x = 1,094,643,469.52/37,768.16
6. Step 6: Final answer
   x = 28,983.24