Finding the Fourth Proportional to 441,976.10, 662,980.55 and 142,460.98

Step by Step Solution

1. Step 1: Write the proportion equation
   441,976.10 : 662,980.55 = 142,460.98 : x
2. Step 2: Convert to fraction form
   441,976.10/662,980.55 = 142,460.98/x
3. Step 3: Cross multiply
   441,976.10x = 662,980.55 × 142,460.98
4. Step 4: Simplify right side
   441,976.10x = 94,448,856,504.18
5. Step 5: Solve for x
   x = 94,448,856,504.18/441,976.10
6. Step 6: Final answer
   x = 213,696.75