Finding the Fourth Proportional to 10,213.72, 14,090.11 and 8,737.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,213.72 : 14,090.11 = 8,737.49 : x
2. Step 2: Convert to fraction form
   10,213.72/14,090.11 = 8,737.49/x
3. Step 3: Cross multiply
   10,213.72x = 14,090.11 × 8,737.49
4. Step 4: Simplify right side
   10,213.72x = 123,112,208.61
5. Step 5: Solve for x
   x = 123,112,208.61/10,213.72
6. Step 6: Final answer
   x = 12,053.61