Finding the Fourth Proportional to 78,040.08, 107,676.56 and 47,412.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,040.08 : 107,676.56 = 47,412.56 : x
2. Step 2: Convert to fraction form
   78,040.08/107,676.56 = 47,412.56/x
3. Step 3: Cross multiply
   78,040.08x = 107,676.56 × 47,412.56
4. Step 4: Simplify right side
   78,040.08x = 5,105,221,361.59
5. Step 5: Solve for x
   x = 5,105,221,361.59/78,040.08
6. Step 6: Final answer
   x = 65,417.94