Finding the Fourth Proportional to 13,998.06, 19,317.38 and 7,710.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,998.06 : 19,317.38 = 7,710.42 : x
2. Step 2: Convert to fraction form
   13,998.06/19,317.38 = 7,710.42/x
3. Step 3: Cross multiply
   13,998.06x = 19,317.38 × 7,710.42
4. Step 4: Simplify right side
   13,998.06x = 148,945,074.55
5. Step 5: Solve for x
   x = 148,945,074.55/13,998.06
6. Step 6: Final answer
   x = 10,640.41