Finding the Fourth Proportional to 37,760.16, 52,109.28 and 20,994.24

Step by Step Solution

1. Step 1: Write the proportion equation
   37,760.16 : 52,109.28 = 20,994.24 : x
2. Step 2: Convert to fraction form
   37,760.16/52,109.28 = 20,994.24/x
3. Step 3: Cross multiply
   37,760.16x = 52,109.28 × 20,994.24
4. Step 4: Simplify right side
   37,760.16x = 1,093,994,730.55
5. Step 5: Solve for x
   x = 1,093,994,730.55/37,760.16
6. Step 6: Final answer
   x = 28,972.20