Finding the Fourth Proportional to 140,594.56, 210,969.84 and 57,546.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,594.56 : 210,969.84 = 57,546.88 : x
2. Step 2: Convert to fraction form
   140,594.56/210,969.84 = 57,546.88/x
3. Step 3: Cross multiply
   140,594.56x = 210,969.84 × 57,546.88
4. Step 4: Simplify right side
   140,594.56x = 12,140,656,066.10
5. Step 5: Solve for x
   x = 12,140,656,066.10/140,594.56
6. Step 6: Final answer
   x = 86,352.25