Finding the Fourth Proportional to 47,079.98, 64,970.31 and 25,860.61

Step by Step Solution

1. Step 1: Write the proportion equation
   47,079.98 : 64,970.31 = 25,860.61 : x
2. Step 2: Convert to fraction form
   47,079.98/64,970.31 = 25,860.61/x
3. Step 3: Cross multiply
   47,079.98x = 64,970.31 × 25,860.61
4. Step 4: Simplify right side
   47,079.98x = 1,680,171,848.49
5. Step 5: Solve for x
   x = 1,680,171,848.49/47,079.98
6. Step 6: Final answer
   x = 35,687.61