Finding the Fourth Proportional to 140,599.68, 210,942.72 and 57,500.16

Step by Step Solution

1. Step 1: Write the proportion equation
   140,599.68 : 210,942.72 = 57,500.16 : x
2. Step 2: Convert to fraction form
   140,599.68/210,942.72 = 57,500.16/x
3. Step 3: Cross multiply
   140,599.68x = 210,942.72 × 57,500.16
4. Step 4: Simplify right side
   140,599.68x = 12,129,240,150.84
5. Step 5: Solve for x
   x = 12,129,240,150.84/140,599.68
6. Step 6: Final answer
   x = 86,267.91