Finding the Fourth Proportional to 16,302.89, 22,501.40 and 9,931.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,302.89 : 22,501.40 = 9,931.56 : x
2. Step 2: Convert to fraction form
   16,302.89/22,501.40 = 9,931.56/x
3. Step 3: Cross multiply
   16,302.89x = 22,501.40 × 9,931.56
4. Step 4: Simplify right side
   16,302.89x = 223,473,954.53
5. Step 5: Solve for x
   x = 223,473,954.53/16,302.89
6. Step 6: Final answer
   x = 13,707.63