Finding the Fourth Proportional to 85,074.72, 117,401.76 and 47,349.60

Step by Step Solution

1. Step 1: Write the proportion equation
   85,074.72 : 117,401.76 = 47,349.60 : x
2. Step 2: Convert to fraction form
   85,074.72/117,401.76 = 47,349.60/x
3. Step 3: Cross multiply
   85,074.72x = 117,401.76 × 47,349.60
4. Step 4: Simplify right side
   85,074.72x = 5,558,926,375.30
5. Step 5: Solve for x
   x = 5,558,926,375.30/85,074.72
6. Step 6: Final answer
   x = 65,341.69