Finding the Fourth Proportional to 78,424.47, 108,225.56 and 42,614.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,424.47 : 108,225.56 = 42,614.48 : x
2. Step 2: Convert to fraction form
   78,424.47/108,225.56 = 42,614.48/x
3. Step 3: Cross multiply
   78,424.47x = 108,225.56 × 42,614.48
4. Step 4: Simplify right side
   78,424.47x = 4,611,975,962.11
5. Step 5: Solve for x
   x = 4,611,975,962.11/78,424.47
6. Step 6: Final answer
   x = 58,807.87