Finding the Fourth Proportional to 13,021.94, 17,978.29 and 10,032.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,021.94 : 17,978.29 = 10,032.03 : x
2. Step 2: Convert to fraction form
   13,021.94/17,978.29 = 10,032.03/x
3. Step 3: Cross multiply
   13,021.94x = 17,978.29 × 10,032.03
4. Step 4: Simplify right side
   13,021.94x = 180,358,719.55
5. Step 5: Solve for x
   x = 180,358,719.55/13,021.94
6. Step 6: Final answer
   x = 13,850.37