Finding the Fourth Proportional to 47,079.76, 64,971.54 and 25,859

Step by Step Solution

1. Step 1: Write the proportion equation
   47,079.76 : 64,971.54 = 25,859 : x
2. Step 2: Convert to fraction form
   47,079.76/64,971.54 = 25,859/x
3. Step 3: Cross multiply
   47,079.76x = 64,971.54 × 25,859
4. Step 4: Simplify right side
   47,079.76x = 1,680,099,052.86
5. Step 5: Solve for x
   x = 1,680,099,052.86/47,079.76
6. Step 6: Final answer
   x = 35,686.23