Finding the Fourth Proportional to 25,074.92, 37,618.86 and 13,385

Step by Step Solution

1. Step 1: Write the proportion equation
   25,074.92 : 37,618.86 = 13,385 : x
2. Step 2: Convert to fraction form
   25,074.92/37,618.86 = 13,385/x
3. Step 3: Cross multiply
   25,074.92x = 37,618.86 × 13,385
4. Step 4: Simplify right side
   25,074.92x = 503,528,441.10
5. Step 5: Solve for x
   x = 503,528,441.10/25,074.92
6. Step 6: Final answer
   x = 20,080.96