Finding the Fourth Proportional to 10,612, 15,805.90 and 10,056.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,612 : 15,805.90 = 10,056.88 : x
2. Step 2: Convert to fraction form
   10,612/15,805.90 = 10,056.88/x
3. Step 3: Cross multiply
   10,612x = 15,805.90 × 10,056.88
4. Step 4: Simplify right side
   10,612x = 158,958,039.59
5. Step 5: Solve for x
   x = 158,958,039.59/10,612
6. Step 6: Final answer
   x = 14,979.08