Finding the Fourth Proportional to 78,548.23, 108,397.05 and 42,738.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,548.23 : 108,397.05 = 42,738.52 : x
2. Step 2: Convert to fraction form
   78,548.23/108,397.05 = 42,738.52/x
3. Step 3: Cross multiply
   78,548.23x = 108,397.05 × 42,738.52
4. Step 4: Simplify right side
   78,548.23x = 4,632,729,489.37
5. Step 5: Solve for x
   x = 4,632,729,489.37/78,548.23
6. Step 6: Final answer
   x = 58,979.43