Finding the Fourth Proportional to 12,059.04, 16,641.64 and 7,864.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,059.04 : 16,641.64 = 7,864.88 : x
2. Step 2: Convert to fraction form
   12,059.04/16,641.64 = 7,864.88/x
3. Step 3: Cross multiply
   12,059.04x = 16,641.64 × 7,864.88
4. Step 4: Simplify right side
   12,059.04x = 130,884,501.60
5. Step 5: Solve for x
   x = 130,884,501.60/12,059.04
6. Step 6: Final answer
   x = 10,853.64