Finding the Fourth Proportional to 15,554.02, 21,463.61 and 8,838.71

Step by Step Solution

1. Step 1: Write the proportion equation
   15,554.02 : 21,463.61 = 8,838.71 : x
2. Step 2: Convert to fraction form
   15,554.02/21,463.61 = 8,838.71/x
3. Step 3: Cross multiply
   15,554.02x = 21,463.61 × 8,838.71
4. Step 4: Simplify right side
   15,554.02x = 189,710,624.34
5. Step 5: Solve for x
   x = 189,710,624.34/15,554.02
6. Step 6: Final answer
   x = 12,196.89