Finding the Fourth Proportional to 85,368.57, 117,820.52 and 47,645.25

Step by Step Solution

1. Step 1: Write the proportion equation
   85,368.57 : 117,820.52 = 47,645.25 : x
2. Step 2: Convert to fraction form
   85,368.57/117,820.52 = 47,645.25/x
3. Step 3: Cross multiply
   85,368.57x = 117,820.52 × 47,645.25
4. Step 4: Simplify right side
   85,368.57x = 5,613,587,892.30
5. Step 5: Solve for x
   x = 5,613,587,892.30/85,368.57
6. Step 6: Final answer
   x = 65,757.08