Finding the Fourth Proportional to 13,301.51, 18,354.03 and 7,922.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,301.51 : 18,354.03 = 7,922.30 : x
2. Step 2: Convert to fraction form
   13,301.51/18,354.03 = 7,922.30/x
3. Step 3: Cross multiply
   13,301.51x = 18,354.03 × 7,922.30
4. Step 4: Simplify right side
   13,301.51x = 145,406,040.10
5. Step 5: Solve for x
   x = 145,406,040.10/13,301.51
6. Step 6: Final answer
   x = 10,931.55