Finding the Fourth Proportional to 155,004.69, 213,908.81 and 149,641.05

Step by Step Solution

1. Step 1: Write the proportion equation
   155,004.69 : 213,908.81 = 149,641.05 : x
2. Step 2: Convert to fraction form
   155,004.69/213,908.81 = 149,641.05/x
3. Step 3: Cross multiply
   155,004.69x = 213,908.81 × 149,641.05
4. Step 4: Simplify right side
   155,004.69x = 32,009,538,184.45
5. Step 5: Solve for x
   x = 32,009,538,184.45/155,004.69
6. Step 6: Final answer
   x = 206,506.90