Finding the Fourth Proportional to 47,086.11, 64,978.88 and 25,866.74

Step by Step Solution

1. Step 1: Write the proportion equation
   47,086.11 : 64,978.88 = 25,866.74 : x
2. Step 2: Convert to fraction form
   47,086.11/64,978.88 = 25,866.74/x
3. Step 3: Cross multiply
   47,086.11x = 64,978.88 × 25,866.74
4. Step 4: Simplify right side
   47,086.11x = 1,680,791,827.56
5. Step 5: Solve for x
   x = 1,680,791,827.56/47,086.11
6. Step 6: Final answer
   x = 35,696.13