Finding the Fourth Proportional to 102,004.47, 140,761.59 and 56,682.24

Step by Step Solution

1. Step 1: Write the proportion equation
   102,004.47 : 140,761.59 = 56,682.24 : x
2. Step 2: Convert to fraction form
   102,004.47/140,761.59 = 56,682.24/x
3. Step 3: Cross multiply
   102,004.47x = 140,761.59 × 56,682.24
4. Step 4: Simplify right side
   102,004.47x = 7,978,682,227.16
5. Step 5: Solve for x
   x = 7,978,682,227.16/102,004.47
6. Step 6: Final answer
   x = 78,218.95