Finding the Fourth Proportional to 140,468.22, 210,603.89 and 51,710.18

Step by Step Solution

1. Step 1: Write the proportion equation
   140,468.22 : 210,603.89 = 51,710.18 : x
2. Step 2: Convert to fraction form
   140,468.22/210,603.89 = 51,710.18/x
3. Step 3: Cross multiply
   140,468.22x = 210,603.89 × 51,710.18
4. Step 4: Simplify right side
   140,468.22x = 10,890,363,749.03
5. Step 5: Solve for x
   x = 10,890,363,749.03/140,468.22
6. Step 6: Final answer
   x = 77,529.02