Finding the Fourth Proportional to 13,105.23, 19,666.98 and 5,705.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.23 : 19,666.98 = 5,705.88 : x
2. Step 2: Convert to fraction form
   13,105.23/19,666.98 = 5,705.88/x
3. Step 3: Cross multiply
   13,105.23x = 19,666.98 × 5,705.88
4. Step 4: Simplify right side
   13,105.23x = 112,217,427.84
5. Step 5: Solve for x
   x = 112,217,427.84/13,105.23
6. Step 6: Final answer
   x = 8,562.80