Finding the Fourth Proportional to 13,998.48, 19,318.32 and 7,710.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,998.48 : 19,318.32 = 7,710.72 : x
2. Step 2: Convert to fraction form
   13,998.48/19,318.32 = 7,710.72/x
3. Step 3: Cross multiply
   13,998.48x = 19,318.32 × 7,710.72
4. Step 4: Simplify right side
   13,998.48x = 148,958,156.39
5. Step 5: Solve for x
   x = 148,958,156.39/13,998.48
6. Step 6: Final answer
   x = 10,641.02