Finding the Fourth Proportional to 12,019.07, 16,575.53 and 10,009.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.07 : 16,575.53 = 10,009.13 : x
2. Step 2: Convert to fraction form
   12,019.07/16,575.53 = 10,009.13/x
3. Step 3: Cross multiply
   12,019.07x = 16,575.53 × 10,009.13
4. Step 4: Simplify right side
   12,019.07x = 165,906,634.59
5. Step 5: Solve for x
   x = 165,906,634.59/12,019.07
6. Step 6: Final answer
   x = 13,803.62