Finding the Fourth Proportional to 47,078.76, 64,970.16 and 25,858

Step by Step Solution

1. Step 1: Write the proportion equation
   47,078.76 : 64,970.16 = 25,858 : x
2. Step 2: Convert to fraction form
   47,078.76/64,970.16 = 25,858/x
3. Step 3: Cross multiply
   47,078.76x = 64,970.16 × 25,858
4. Step 4: Simplify right side
   47,078.76x = 1,679,998,397.28
5. Step 5: Solve for x
   x = 1,679,998,397.28/47,078.76
6. Step 6: Final answer
   x = 35,684.85