Finding the Fourth Proportional to 47,321.10, 70,921.35 and 25,145.10

Step by Step Solution

1. Step 1: Write the proportion equation
   47,321.10 : 70,921.35 = 25,145.10 : x
2. Step 2: Convert to fraction form
   47,321.10/70,921.35 = 25,145.10/x
3. Step 3: Cross multiply
   47,321.10x = 70,921.35 × 25,145.10
4. Step 4: Simplify right side
   47,321.10x = 1,783,324,437.89
5. Step 5: Solve for x
   x = 1,783,324,437.89/47,321.10
6. Step 6: Final answer
   x = 37,685.61