Finding the Fourth Proportional to 108,729.63, 150,046.83 and 63,409.59

Step by Step Solution

1. Step 1: Write the proportion equation
   108,729.63 : 150,046.83 = 63,409.59 : x
2. Step 2: Convert to fraction form
   108,729.63/150,046.83 = 63,409.59/x
3. Step 3: Cross multiply
   108,729.63x = 150,046.83 × 63,409.59
4. Step 4: Simplify right side
   108,729.63x = 9,514,407,971.10
5. Step 5: Solve for x
   x = 9,514,407,971.10/108,729.63
6. Step 6: Final answer
   x = 87,505.20