Finding the Fourth Proportional to 23,174.66, 31,980.83 and 13,105.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.66 : 31,980.83 = 13,105.07 : x
2. Step 2: Convert to fraction form
   23,174.66/31,980.83 = 13,105.07/x
3. Step 3: Cross multiply
   23,174.66x = 31,980.83 × 13,105.07
4. Step 4: Simplify right side
   23,174.66x = 419,111,200.77
5. Step 5: Solve for x
   x = 419,111,200.77/23,174.66
6. Step 6: Final answer
   x = 18,084.89