Finding the Fourth Proportional to 13,022.22, 17,971.10 and 7,916.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.22 : 17,971.10 = 7,916.03 : x
2. Step 2: Convert to fraction form
   13,022.22/17,971.10 = 7,916.03/x
3. Step 3: Cross multiply
   13,022.22x = 17,971.10 × 7,916.03
4. Step 4: Simplify right side
   13,022.22x = 142,259,767.77
5. Step 5: Solve for x
   x = 142,259,767.77/13,022.22
6. Step 6: Final answer
   x = 10,924.39