Finding the Fourth Proportional to 38,904, 53,697.24 and 22,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   38,904 : 53,697.24 = 22,146.72 : x
2. Step 2: Convert to fraction form
   38,904/53,697.24 = 22,146.72/x
3. Step 3: Cross multiply
   38,904x = 53,697.24 × 22,146.72
4. Step 4: Simplify right side
   38,904x = 1,189,217,739.05
5. Step 5: Solve for x
   x = 1,189,217,739.05/38,904
6. Step 6: Final answer
   x = 30,568.01