Finding the Fourth Proportional to 78,014.82, 107,660.28 and 42,204.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,014.82 : 107,660.28 = 42,204.72 : x
2. Step 2: Convert to fraction form
   78,014.82/107,660.28 = 42,204.72/x
3. Step 3: Cross multiply
   78,014.82x = 107,660.28 × 42,204.72
4. Step 4: Simplify right side
   78,014.82x = 4,543,771,972.52
5. Step 5: Solve for x
   x = 4,543,771,972.52/78,014.82
6. Step 6: Final answer
   x = 58,242.42