Finding the Fourth Proportional to 25,139.58, 37,696.38 and 10,345.74

Step by Step Solution

1. Step 1: Write the proportion equation
   25,139.58 : 37,696.38 = 10,345.74 : x
2. Step 2: Convert to fraction form
   25,139.58/37,696.38 = 10,345.74/x
3. Step 3: Cross multiply
   25,139.58x = 37,696.38 × 10,345.74
4. Step 4: Simplify right side
   25,139.58x = 389,996,946.42
5. Step 5: Solve for x
   x = 389,996,946.42/25,139.58
6. Step 6: Final answer
   x = 15,513.26