Finding the Fourth Proportional to 85,307.69, 117,724.28 and 47,069.62

Step by Step Solution

1. Step 1: Write the proportion equation
   85,307.69 : 117,724.28 = 47,069.62 : x
2. Step 2: Convert to fraction form
   85,307.69/117,724.28 = 47,069.62/x
3. Step 3: Cross multiply
   85,307.69x = 117,724.28 × 47,069.62
4. Step 4: Simplify right side
   85,307.69x = 5,541,236,300.40
5. Step 5: Solve for x
   x = 5,541,236,300.40/85,307.69
6. Step 6: Final answer
   x = 64,955.88