Finding the Fourth Proportional to 140,026.52, 210,019.16 and 51,259.37

Step by Step Solution

1. Step 1: Write the proportion equation
   140,026.52 : 210,019.16 = 51,259.37 : x
2. Step 2: Convert to fraction form
   140,026.52/210,019.16 = 51,259.37/x
3. Step 3: Cross multiply
   140,026.52x = 210,019.16 × 51,259.37
4. Step 4: Simplify right side
   140,026.52x = 10,765,448,907.58
5. Step 5: Solve for x
   x = 10,765,448,907.58/140,026.52
6. Step 6: Final answer
   x = 76,881.50