Finding the Fourth Proportional to 13,857.89, 19,139.83 and 10,097.87

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.89 : 19,139.83 = 10,097.87 : x
2. Step 2: Convert to fraction form
   13,857.89/19,139.83 = 10,097.87/x
3. Step 3: Cross multiply
   13,857.89x = 19,139.83 × 10,097.87
4. Step 4: Simplify right side
   13,857.89x = 193,271,394.22
5. Step 5: Solve for x
   x = 193,271,394.22/13,857.89
6. Step 6: Final answer
   x = 13,946.67