Finding the Fourth Proportional to 85,037.56, 117,351.72 and 47,311.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,037.56 : 117,351.72 = 47,311.72 : x
2. Step 2: Convert to fraction form
   85,037.56/117,351.72 = 47,311.72/x
3. Step 3: Cross multiply
   85,037.56x = 117,351.72 × 47,311.72
4. Step 4: Simplify right side
   85,037.56x = 5,552,111,718.16
5. Step 5: Solve for x
   x = 5,552,111,718.16/85,037.56
6. Step 6: Final answer
   x = 65,290.11