Finding the Fourth Proportional to 308,437.64, 462,504.72 and 108,729.00

Step by Step Solution

1. Step 1: Write the proportion equation
   308,437.64 : 462,504.72 = 108,729.00 : x
2. Step 2: Convert to fraction form
   308,437.64/462,504.72 = 108,729.00/x
3. Step 3: Cross multiply
   308,437.64x = 462,504.72 × 108,729.00
4. Step 4: Simplify right side
   308,437.64x = 50,287,672,844.71
5. Step 5: Solve for x
   x = 50,287,672,844.71/308,437.64
6. Step 6: Final answer
   x = 163,040.00