Finding the Fourth Proportional to 78,373.74, 108,156.56 and 42,564.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,373.74 : 108,156.56 = 42,564.46 : x
2. Step 2: Convert to fraction form
   78,373.74/108,156.56 = 42,564.46/x
3. Step 3: Cross multiply
   78,373.74x = 108,156.56 × 42,564.46
4. Step 4: Simplify right side
   78,373.74x = 4,603,625,571.86
5. Step 5: Solve for x
   x = 4,603,625,571.86/78,373.74
6. Step 6: Final answer
   x = 58,739.39