Finding the Fourth Proportional to 196,029.60, 270,581.76 and 155,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   196,029.60 : 270,581.76 = 155,814.72 : x
2. Step 2: Convert to fraction form
   196,029.60/270,581.76 = 155,814.72/x
3. Step 3: Cross multiply
   196,029.60x = 270,581.76 × 155,814.72
4. Step 4: Simplify right side
   196,029.60x = 42,160,621,171.51
5. Step 5: Solve for x
   x = 42,160,621,171.51/196,029.60
6. Step 6: Final answer
   x = 215,072.73