Finding the Fourth Proportional to 146,457.88, 219,535.98 and 57,675.40

Step by Step Solution

1. Step 1: Write the proportion equation
   146,457.88 : 219,535.98 = 57,675.40 : x
2. Step 2: Convert to fraction form
   146,457.88/219,535.98 = 57,675.40/x
3. Step 3: Cross multiply
   146,457.88x = 219,535.98 × 57,675.40
4. Step 4: Simplify right side
   146,457.88x = 12,661,825,460.89
5. Step 5: Solve for x
   x = 12,661,825,460.89/146,457.88
6. Step 6: Final answer
   x = 86,453.70