Finding the Fourth Proportional to 78,514.96, 108,349.60 and 42,704.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,514.96 : 108,349.60 = 42,704.20 : x
2. Step 2: Convert to fraction form
   78,514.96/108,349.60 = 42,704.20/x
3. Step 3: Cross multiply
   78,514.96x = 108,349.60 × 42,704.20
4. Step 4: Simplify right side
   78,514.96x = 4,626,982,988.32
5. Step 5: Solve for x
   x = 4,626,982,988.32/78,514.96
6. Step 6: Final answer
   x = 58,931.23