Finding the Fourth Proportional to 355,796.64, 533,722.56 and 103,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   355,796.64 : 533,722.56 = 103,080.72 : x
2. Step 2: Convert to fraction form
   355,796.64/533,722.56 = 103,080.72/x
3. Step 3: Cross multiply
   355,796.64x = 533,722.56 × 103,080.72
4. Step 4: Simplify right side
   355,796.64x = 55,016,505,765.04
5. Step 5: Solve for x
   x = 55,016,505,765.04/355,796.64
6. Step 6: Final answer
   x = 154,629.08