Finding the Fourth Proportional to 85,008.58, 117,316.17 and 49,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   85,008.58 : 117,316.17 = 49,200.10 : x
2. Step 2: Convert to fraction form
   85,008.58/117,316.17 = 49,200.10/x
3. Step 3: Cross multiply
   85,008.58x = 117,316.17 × 49,200.10
4. Step 4: Simplify right side
   85,008.58x = 5,771,967,295.62
5. Step 5: Solve for x
   x = 5,771,967,295.62/85,008.58
6. Step 6: Final answer
   x = 67,898.64