Finding the Fourth Proportional to 78,484.44, 108,308.79 and 42,674.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,484.44 : 108,308.79 = 42,674.34 : x
2. Step 2: Convert to fraction form
   78,484.44/108,308.79 = 42,674.34/x
3. Step 3: Cross multiply
   78,484.44x = 108,308.79 × 42,674.34
4. Step 4: Simplify right side
   78,484.44x = 4,622,006,129.45
5. Step 5: Solve for x
   x = 4,622,006,129.45/78,484.44
6. Step 6: Final answer
   x = 58,890.73