Finding the Fourth Proportional to 85,515, 118,013.22 and 47,789.34

Step by Step Solution

1. Step 1: Write the proportion equation
   85,515 : 118,013.22 = 47,789.34 : x
2. Step 2: Convert to fraction form
   85,515/118,013.22 = 47,789.34/x
3. Step 3: Cross multiply
   85,515x = 118,013.22 × 47,789.34
4. Step 4: Simplify right side
   85,515x = 5,639,773,895.07
5. Step 5: Solve for x
   x = 5,639,773,895.07/85,515
6. Step 6: Final answer
   x = 65,950.70