Finding the Fourth Proportional to 12,998.88, 17,938.45 and 7,334.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.88 : 17,938.45 = 7,334.83 : x
2. Step 2: Convert to fraction form
   12,998.88/17,938.45 = 7,334.83/x
3. Step 3: Cross multiply
   12,998.88x = 17,938.45 × 7,334.83
4. Step 4: Simplify right side
   12,998.88x = 131,575,432.53
5. Step 5: Solve for x
   x = 131,575,432.53/12,998.88
6. Step 6: Final answer
   x = 10,122.06