Finding the Fourth Proportional to 23,810.71, 35,684.72 and 13,285.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,810.71 : 35,684.72 = 13,285.69 : x
2. Step 2: Convert to fraction form
   23,810.71/35,684.72 = 13,285.69/x
3. Step 3: Cross multiply
   23,810.71x = 35,684.72 × 13,285.69
4. Step 4: Simplify right side
   23,810.71x = 474,096,071.66
5. Step 5: Solve for x
   x = 474,096,071.66/23,810.71
6. Step 6: Final answer
   x = 19,911.05