Finding the Fourth Proportional to 78,317.06, 108,076.32 and 42,506.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,317.06 : 108,076.32 = 42,506.76 : x
2. Step 2: Convert to fraction form
   78,317.06/108,076.32 = 42,506.76/x
3. Step 3: Cross multiply
   78,317.06x = 108,076.32 × 42,506.76
4. Step 4: Simplify right side
   78,317.06x = 4,593,974,195.92
5. Step 5: Solve for x
   x = 4,593,974,195.92/78,317.06
6. Step 6: Final answer
   x = 58,658.67