Finding the Fourth Proportional to 34,885.38, 48,145.86 and 20,738.10

Step by Step Solution

1. Step 1: Write the proportion equation
   34,885.38 : 48,145.86 = 20,738.10 : x
2. Step 2: Convert to fraction form
   34,885.38/48,145.86 = 20,738.10/x
3. Step 3: Cross multiply
   34,885.38x = 48,145.86 × 20,738.10
4. Step 4: Simplify right side
   34,885.38x = 998,453,659.27
5. Step 5: Solve for x
   x = 998,453,659.27/34,885.38
6. Step 6: Final answer
   x = 28,620.98