Finding the Fourth Proportional to 21,461.10, 32,061.09 and 13,903.13

Step by Step Solution

1. Step 1: Write the proportion equation
   21,461.10 : 32,061.09 = 13,903.13 : x
2. Step 2: Convert to fraction form
   21,461.10/32,061.09 = 13,903.13/x
3. Step 3: Cross multiply
   21,461.10x = 32,061.09 × 13,903.13
4. Step 4: Simplify right side
   21,461.10x = 445,749,454.16
5. Step 5: Solve for x
   x = 445,749,454.16/21,461.10
6. Step 6: Final answer
   x = 20,770.12