Finding the Fourth Proportional to 85,139.76, 117,496.50 and 47,414

Step by Step Solution

1. Step 1: Write the proportion equation
   85,139.76 : 117,496.50 = 47,414 : x
2. Step 2: Convert to fraction form
   85,139.76/117,496.50 = 47,414/x
3. Step 3: Cross multiply
   85,139.76x = 117,496.50 × 47,414
4. Step 4: Simplify right side
   85,139.76x = 5,570,979,051
5. Step 5: Solve for x
   x = 5,570,979,051/85,139.76
6. Step 6: Final answer
   x = 65,433.34