Finding the Fourth Proportional to 78,244.34, 107,977.24 and 42,434.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,244.34 : 107,977.24 = 42,434.34 : x
2. Step 2: Convert to fraction form
   78,244.34/107,977.24 = 42,434.34/x
3. Step 3: Cross multiply
   78,244.34x = 107,977.24 × 42,434.34
4. Step 4: Simplify right side
   78,244.34x = 4,581,942,914.42
5. Step 5: Solve for x
   x = 4,581,942,914.42/78,244.34
6. Step 6: Final answer
   x = 58,559.42