Finding the Fourth Proportional to 85,061.12, 117,386.16 and 47,337.80

Step by Step Solution

1. Step 1: Write the proportion equation
   85,061.12 : 117,386.16 = 47,337.80 : x
2. Step 2: Convert to fraction form
   85,061.12/117,386.16 = 47,337.80/x
3. Step 3: Cross multiply
   85,061.12x = 117,386.16 × 47,337.80
4. Step 4: Simplify right side
   85,061.12x = 5,556,802,564.85
5. Step 5: Solve for x
   x = 5,556,802,564.85/85,061.12
6. Step 6: Final answer
   x = 65,327.17