Finding the Fourth Proportional to 22,736.16, 31,365 and 14,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,736.16 : 31,365 = 14,780.88 : x
2. Step 2: Convert to fraction form
   22,736.16/31,365 = 14,780.88/x
3. Step 3: Cross multiply
   22,736.16x = 31,365 × 14,780.88
4. Step 4: Simplify right side
   22,736.16x = 463,602,301.20
5. Step 5: Solve for x
   x = 463,602,301.20/22,736.16
6. Step 6: Final answer
   x = 20,390.53