Finding the Fourth Proportional to 78,424.28, 108,225.29 and 42,614.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,424.28 : 108,225.29 = 42,614.28 : x
2. Step 2: Convert to fraction form
   78,424.28/108,225.29 = 42,614.28/x
3. Step 3: Cross multiply
   78,424.28x = 108,225.29 × 42,614.28
4. Step 4: Simplify right side
   78,424.28x = 4,611,942,598.07
5. Step 5: Solve for x
   x = 4,611,942,598.07/78,424.28
6. Step 6: Final answer
   x = 58,807.59