Finding the Fourth Proportional to 37,758.72, 52,109.76 and 20,994.24

Step by Step Solution

1. Step 1: Write the proportion equation
   37,758.72 : 52,109.76 = 20,994.24 : x
2. Step 2: Convert to fraction form
   37,758.72/52,109.76 = 20,994.24/x
3. Step 3: Cross multiply
   37,758.72x = 52,109.76 × 20,994.24
4. Step 4: Simplify right side
   37,758.72x = 1,094,004,807.78
5. Step 5: Solve for x
   x = 1,094,004,807.78/37,758.72
6. Step 6: Final answer
   x = 28,973.57