Finding the Fourth Proportional to 42,896.42, 64,326.81 and 16,586

Step by Step Solution

1. Step 1: Write the proportion equation
   42,896.42 : 64,326.81 = 16,586 : x
2. Step 2: Convert to fraction form
   42,896.42/64,326.81 = 16,586/x
3. Step 3: Cross multiply
   42,896.42x = 64,326.81 × 16,586
4. Step 4: Simplify right side
   42,896.42x = 1,066,924,470.66
5. Step 5: Solve for x
   x = 1,066,924,470.66/42,896.42
6. Step 6: Final answer
   x = 24,872.11