Finding the Fourth Proportional to 78,496.09, 108,325.37 and 42,686.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,496.09 : 108,325.37 = 42,686.88 : x
2. Step 2: Convert to fraction form
   78,496.09/108,325.37 = 42,686.88/x
3. Step 3: Cross multiply
   78,496.09x = 108,325.37 × 42,686.88
4. Step 4: Simplify right side
   78,496.09x = 4,624,071,315.08
5. Step 5: Solve for x
   x = 4,624,071,315.08/78,496.09
6. Step 6: Final answer
   x = 58,908.30