Finding the Fourth Proportional to 12,059.64, 16,612.56 and 10,485

Step by Step Solution

1. Step 1: Write the proportion equation
   12,059.64 : 16,612.56 = 10,485 : x
2. Step 2: Convert to fraction form
   12,059.64/16,612.56 = 10,485/x
3. Step 3: Cross multiply
   12,059.64x = 16,612.56 × 10,485
4. Step 4: Simplify right side
   12,059.64x = 174,182,691.60
5. Step 5: Solve for x
   x = 174,182,691.60/12,059.64
6. Step 6: Final answer
   x = 14,443.44