Finding the Fourth Proportional to 85,061.34, 117,389.25 and 47,336.40

Step by Step Solution

1. Step 1: Write the proportion equation
   85,061.34 : 117,389.25 = 47,336.40 : x
2. Step 2: Convert to fraction form
   85,061.34/117,389.25 = 47,336.40/x
3. Step 3: Cross multiply
   85,061.34x = 117,389.25 × 47,336.40
4. Step 4: Simplify right side
   85,061.34x = 5,556,784,493.70
5. Step 5: Solve for x
   x = 5,556,784,493.70/85,061.34
6. Step 6: Final answer
   x = 65,326.79