Finding the Fourth Proportional to 12,056.46, 16,636.47 and 7,019.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.46 : 16,636.47 = 7,019.88 : x
2. Step 2: Convert to fraction form
   12,056.46/16,636.47 = 7,019.88/x
3. Step 3: Cross multiply
   12,056.46x = 16,636.47 × 7,019.88
4. Step 4: Simplify right side
   12,056.46x = 116,786,023.02
5. Step 5: Solve for x
   x = 116,786,023.02/12,056.46
6. Step 6: Final answer
   x = 9,686.59