Finding the Fourth Proportional to 22,908.17, 31,612.74 and 13,477.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,908.17 : 31,612.74 = 13,477.34 : x
2. Step 2: Convert to fraction form
   22,908.17/31,612.74 = 13,477.34/x
3. Step 3: Cross multiply
   22,908.17x = 31,612.74 × 13,477.34
4. Step 4: Simplify right side
   22,908.17x = 426,055,645.31
5. Step 5: Solve for x
   x = 426,055,645.31/22,908.17
6. Step 6: Final answer
   x = 18,598.41