Finding the Fourth Proportional to 78,660.06, 108,549.63 and 42,850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,660.06 : 108,549.63 = 42,850.50 : x
2. Step 2: Convert to fraction form
   78,660.06/108,549.63 = 42,850.50/x
3. Step 3: Cross multiply
   78,660.06x = 108,549.63 × 42,850.50
4. Step 4: Simplify right side
   78,660.06x = 4,651,405,920.32
5. Step 5: Solve for x
   x = 4,651,405,920.32/78,660.06
6. Step 6: Final answer
   x = 59,133.01