Finding the Fourth Proportional to 42,984.91, 64,464.90 and 18,024.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,984.91 : 64,464.90 = 18,024.31 : x
2. Step 2: Convert to fraction form
   42,984.91/64,464.90 = 18,024.31/x
3. Step 3: Cross multiply
   42,984.91x = 64,464.90 × 18,024.31
4. Step 4: Simplify right side
   42,984.91x = 1,161,935,341.72
5. Step 5: Solve for x
   x = 1,161,935,341.72/42,984.91
6. Step 6: Final answer
   x = 27,031.24