Finding the Fourth Proportional to 78,316.27, 108,076.55 and 42,506.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,316.27 : 108,076.55 = 42,506.27 : x
2. Step 2: Convert to fraction form
   78,316.27/108,076.55 = 42,506.27/x
3. Step 3: Cross multiply
   78,316.27x = 108,076.55 × 42,506.27
4. Step 4: Simplify right side
   78,316.27x = 4,593,931,025.99
5. Step 5: Solve for x
   x = 4,593,931,025.99/78,316.27
6. Step 6: Final answer
   x = 58,658.71