Finding the Fourth Proportional to 10,681.00, 16,002.05 and 10,447.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,681.00 : 16,002.05 = 10,447.72 : x
2. Step 2: Convert to fraction form
   10,681.00/16,002.05 = 10,447.72/x
3. Step 3: Cross multiply
   10,681.00x = 16,002.05 × 10,447.72
4. Step 4: Simplify right side
   10,681.00x = 167,184,857.82
5. Step 5: Solve for x
   x = 167,184,857.82/10,681.00
6. Step 6: Final answer
   x = 15,652.55