Finding the Fourth Proportional to 78,889.48, 118,377.27 and 45,674.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,889.48 : 118,377.27 = 45,674.42 : x
2. Step 2: Convert to fraction form
   78,889.48/118,377.27 = 45,674.42/x
3. Step 3: Cross multiply
   78,889.48x = 118,377.27 × 45,674.42
4. Step 4: Simplify right side
   78,889.48x = 5,406,812,556.55
5. Step 5: Solve for x
   x = 5,406,812,556.55/78,889.48
6. Step 6: Final answer
   x = 68,536.55