Finding the Fourth Proportional to 435,665.10, 653,530.05 and 155,145.90

Step by Step Solution

1. Step 1: Write the proportion equation
   435,665.10 : 653,530.05 = 155,145.90 : x
2. Step 2: Convert to fraction form
   435,665.10/653,530.05 = 155,145.90/x
3. Step 3: Cross multiply
   435,665.10x = 653,530.05 × 155,145.90
4. Step 4: Simplify right side
   435,665.10x = 101,392,507,784.30
5. Step 5: Solve for x
   x = 101,392,507,784.30/435,665.10
6. Step 6: Final answer
   x = 232,730.39