Finding the Fourth Proportional to 30,802.42, 42,513.94 and 19,464.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,802.42 : 42,513.94 = 19,464.72 : x
2. Step 2: Convert to fraction form
   30,802.42/42,513.94 = 19,464.72/x
3. Step 3: Cross multiply
   30,802.42x = 42,513.94 × 19,464.72
4. Step 4: Simplify right side
   30,802.42x = 827,521,938.20
5. Step 5: Solve for x
   x = 827,521,938.20/30,802.42
6. Step 6: Final answer
   x = 26,865.48