Finding the Fourth Proportional to 78,837.52, 118,193.49 and 45,519.79

Step by Step Solution

1. Step 1: Write the proportion equation
   78,837.52 : 118,193.49 = 45,519.79 : x
2. Step 2: Convert to fraction form
   78,837.52/118,193.49 = 45,519.79/x
3. Step 3: Cross multiply
   78,837.52x = 118,193.49 × 45,519.79
4. Step 4: Simplify right side
   78,837.52x = 5,380,142,844.17
5. Step 5: Solve for x
   x = 5,380,142,844.17/78,837.52
6. Step 6: Final answer
   x = 68,243.43