Finding the Fourth Proportional to 11,638.71, 16,054.17 and 7,099.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,638.71 : 16,054.17 = 7,099.32 : x
2. Step 2: Convert to fraction form
   11,638.71/16,054.17 = 7,099.32/x
3. Step 3: Cross multiply
   11,638.71x = 16,054.17 × 7,099.32
4. Step 4: Simplify right side
   11,638.71x = 113,973,738.49
5. Step 5: Solve for x
   x = 113,973,738.49/11,638.71
6. Step 6: Final answer
   x = 9,792.64