Finding the Fourth Proportional to 33,072.30, 49,615.28 and 10,887.00

Step by Step Solution

1. Step 1: Write the proportion equation
   33,072.30 : 49,615.28 = 10,887.00 : x
2. Step 2: Convert to fraction form
   33,072.30/49,615.28 = 10,887.00/x
3. Step 3: Cross multiply
   33,072.30x = 49,615.28 × 10,887.00
4. Step 4: Simplify right side
   33,072.30x = 540,161,643.38
5. Step 5: Solve for x
   x = 540,161,643.38/33,072.30
6. Step 6: Final answer
   x = 16,332.75