Finding the Fourth Proportional to 78,607.98, 108,478.36 and 42,797.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,607.98 : 108,478.36 = 42,797.92 : x
2. Step 2: Convert to fraction form
   78,607.98/108,478.36 = 42,797.92/x
3. Step 3: Cross multiply
   78,607.98x = 108,478.36 × 42,797.92
4. Step 4: Simplify right side
   78,607.98x = 4,642,648,173.01
5. Step 5: Solve for x
   x = 4,642,648,173.01/78,607.98
6. Step 6: Final answer
   x = 59,060.77