Finding the Fourth Proportional to 78,434.99, 108,238.44 and 43,977.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,434.99 : 108,238.44 = 43,977.42 : x
2. Step 2: Convert to fraction form
   78,434.99/108,238.44 = 43,977.42/x
3. Step 3: Cross multiply
   78,434.99x = 108,238.44 × 43,977.42
4. Step 4: Simplify right side
   78,434.99x = 4,760,047,336.02
5. Step 5: Solve for x
   x = 4,760,047,336.02/78,434.99
6. Step 6: Final answer
   x = 60,687.81