Finding the Fourth Proportional to 21,103.34, 31,640.42 and 10,562.00

Step by Step Solution

1. Step 1: Write the proportion equation
   21,103.34 : 31,640.42 = 10,562.00 : x
2. Step 2: Convert to fraction form
   21,103.34/31,640.42 = 10,562.00/x
3. Step 3: Cross multiply
   21,103.34x = 31,640.42 × 10,562.00
4. Step 4: Simplify right side
   21,103.34x = 334,185,984.24
5. Step 5: Solve for x
   x = 334,185,984.24/21,103.34
6. Step 6: Final answer
   x = 15,835.70