Finding the Fourth Proportional to 103,658.79, 155,282.47 and 79,883.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,658.79 : 155,282.47 = 79,883.82 : x
2. Step 2: Convert to fraction form
   103,658.79/155,282.47 = 79,883.82/x
3. Step 3: Cross multiply
   103,658.79x = 155,282.47 × 79,883.82
4. Step 4: Simplify right side
   103,658.79x = 12,404,556,682.93
5. Step 5: Solve for x
   x = 12,404,556,682.93/103,658.79
6. Step 6: Final answer
   x = 119,667.20