Finding the Fourth Proportional to 10,607.49, 14,638.17 and 6,131.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.49 : 14,638.17 = 6,131.22 : x
2. Step 2: Convert to fraction form
   10,607.49/14,638.17 = 6,131.22/x
3. Step 3: Cross multiply
   10,607.49x = 14,638.17 × 6,131.22
4. Step 4: Simplify right side
   10,607.49x = 89,749,840.67
5. Step 5: Solve for x
   x = 89,749,840.67/10,607.49
6. Step 6: Final answer
   x = 8,460.99