Finding the Fourth Proportional to 85,288.82, 117,698.68 and 47,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,288.82 : 117,698.68 = 47,047.50 : x
2. Step 2: Convert to fraction form
   85,288.82/117,698.68 = 47,047.50/x
3. Step 3: Cross multiply
   85,288.82x = 117,698.68 × 47,047.50
4. Step 4: Simplify right side
   85,288.82x = 5,537,428,647.30
5. Step 5: Solve for x
   x = 5,537,428,647.30/85,288.82
6. Step 6: Final answer
   x = 64,925.61