Finding the Fourth Proportional to 10,456.84, 15,687.70 and 3,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.84 : 15,687.70 = 3,061.42 : x
2. Step 2: Convert to fraction form
   10,456.84/15,687.70 = 3,061.42/x
3. Step 3: Cross multiply
   10,456.84x = 15,687.70 × 3,061.42
4. Step 4: Simplify right side
   10,456.84x = 48,026,638.53
5. Step 5: Solve for x
   x = 48,026,638.53/10,456.84
6. Step 6: Final answer
   x = 4,592.84