Finding the Fourth Proportional to 486,111.47, 729,280.61 and 166,265.82

Step by Step Solution

1. Step 1: Write the proportion equation
   486,111.47 : 729,280.61 = 166,265.82 : x
2. Step 2: Convert to fraction form
   486,111.47/729,280.61 = 166,265.82/x
3. Step 3: Cross multiply
   486,111.47x = 729,280.61 × 166,265.82
4. Step 4: Simplify right side
   486,111.47x = 121,254,437,800.42
5. Step 5: Solve for x
   x = 121,254,437,800.42/486,111.47
6. Step 6: Final answer
   x = 249,437.52