Finding the Fourth Proportional to 78,424.20, 108,225.84 and 42,614.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,424.20 : 108,225.84 = 42,614.16 : x
2. Step 2: Convert to fraction form
   78,424.20/108,225.84 = 42,614.16/x
3. Step 3: Cross multiply
   78,424.20x = 108,225.84 × 42,614.16
4. Step 4: Simplify right side
   78,424.20x = 4,611,953,261.89
5. Step 5: Solve for x
   x = 4,611,953,261.89/78,424.20
6. Step 6: Final answer
   x = 58,807.78