Finding the Fourth Proportional to 409,570.71, 614,355.52 and 190,458.82

Step by Step Solution

1. Step 1: Write the proportion equation
   409,570.71 : 614,355.52 = 190,458.82 : x
2. Step 2: Convert to fraction form
   409,570.71/614,355.52 = 190,458.82/x
3. Step 3: Cross multiply
   409,570.71x = 614,355.52 × 190,458.82
4. Step 4: Simplify right side
   409,570.71x = 117,009,427,399.69
5. Step 5: Solve for x
   x = 117,009,427,399.69/409,570.71
6. Step 6: Final answer
   x = 285,687.98