Finding the Fourth Proportional to 22,387.08, 30,908.52 and 13,898.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,387.08 : 30,908.52 = 13,898.10 : x
2. Step 2: Convert to fraction form
   22,387.08/30,908.52 = 13,898.10/x
3. Step 3: Cross multiply
   22,387.08x = 30,908.52 × 13,898.10
4. Step 4: Simplify right side
   22,387.08x = 429,569,701.81
5. Step 5: Solve for x
   x = 429,569,701.81/22,387.08
6. Step 6: Final answer
   x = 19,188.29