Finding the Fourth Proportional to 37,889.12, 52,284.72 and 20,892.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,889.12 : 52,284.72 = 20,892.56 : x
2. Step 2: Convert to fraction form
   37,889.12/52,284.72 = 20,892.56/x
3. Step 3: Cross multiply
   37,889.12x = 52,284.72 × 20,892.56
4. Step 4: Simplify right side
   37,889.12x = 1,092,361,649.68
5. Step 5: Solve for x
   x = 1,092,361,649.68/37,889.12
6. Step 6: Final answer
   x = 28,830.48