Finding the Fourth Proportional to 12,353.31, 17,034.44 and 9,830.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353.31 : 17,034.44 = 9,830.43 : x
2. Step 2: Convert to fraction form
   12,353.31/17,034.44 = 9,830.43/x
3. Step 3: Cross multiply
   12,353.31x = 17,034.44 × 9,830.43
4. Step 4: Simplify right side
   12,353.31x = 167,455,820.86
5. Step 5: Solve for x
   x = 167,455,820.86/12,353.31
6. Step 6: Final answer
   x = 13,555.54