Finding the Fourth Proportional to 38,790.72, 53,531.24 and 22,023.72

Step by Step Solution

1. Step 1: Write the proportion equation
   38,790.72 : 53,531.24 = 22,023.72 : x
2. Step 2: Convert to fraction form
   38,790.72/53,531.24 = 22,023.72/x
3. Step 3: Cross multiply
   38,790.72x = 53,531.24 × 22,023.72
4. Step 4: Simplify right side
   38,790.72x = 1,178,957,041.01
5. Step 5: Solve for x
   x = 1,178,957,041.01/38,790.72
6. Step 6: Final answer
   x = 30,392.76