Finding the Fourth Proportional to 15,513.84, 21,395.88 and 10,476.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,513.84 : 21,395.88 = 10,476.72 : x
2. Step 2: Convert to fraction form
   15,513.84/21,395.88 = 10,476.72/x
3. Step 3: Cross multiply
   15,513.84x = 21,395.88 × 10,476.72
4. Step 4: Simplify right side
   15,513.84x = 224,158,643.91
5. Step 5: Solve for x
   x = 224,158,643.91/15,513.84
6. Step 6: Final answer
   x = 14,448.95