Finding the Fourth Proportional to 12,402.82, 17,109.93 and 7,365.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402.82 : 17,109.93 = 7,365.43 : x
2. Step 2: Convert to fraction form
   12,402.82/17,109.93 = 7,365.43/x
3. Step 3: Cross multiply
   12,402.82x = 17,109.93 × 7,365.43
4. Step 4: Simplify right side
   12,402.82x = 126,021,991.72
5. Step 5: Solve for x
   x = 126,021,991.72/12,402.82
6. Step 6: Final answer
   x = 10,160.75