Finding the Fourth Proportional to 22,487.16, 31,035.01 and 13,055.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,487.16 : 31,035.01 = 13,055.72 : x
2. Step 2: Convert to fraction form
   22,487.16/31,035.01 = 13,055.72/x
3. Step 3: Cross multiply
   22,487.16x = 31,035.01 × 13,055.72
4. Step 4: Simplify right side
   22,487.16x = 405,184,378.28
5. Step 5: Solve for x
   x = 405,184,378.28/22,487.16
6. Step 6: Final answer
   x = 18,018.48