Finding the Fourth Proportional to 23,689.74, 35,546.58 and 13,160.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,689.74 : 35,546.58 = 13,160.10 : x
2. Step 2: Convert to fraction form
   23,689.74/35,546.58 = 13,160.10/x
3. Step 3: Cross multiply
   23,689.74x = 35,546.58 × 13,160.10
4. Step 4: Simplify right side
   23,689.74x = 467,796,547.46
5. Step 5: Solve for x
   x = 467,796,547.46/23,689.74
6. Step 6: Final answer
   x = 19,746.80