Finding the Fourth Proportional to 85,142.81, 117,500.73 and 47,417.06

Step by Step Solution

1. Step 1: Write the proportion equation
   85,142.81 : 117,500.73 = 47,417.06 : x
2. Step 2: Convert to fraction form
   85,142.81/117,500.73 = 47,417.06/x
3. Step 3: Cross multiply
   85,142.81x = 117,500.73 × 47,417.06
4. Step 4: Simplify right side
   85,142.81x = 5,571,539,280.39
5. Step 5: Solve for x
   x = 5,571,539,280.39/85,142.81
6. Step 6: Final answer
   x = 65,437.58