Finding the Fourth Proportional to 435,583.50, 653,399.88 and 155,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   435,583.50 : 653,399.88 = 155,100.78 : x
2. Step 2: Convert to fraction form
   435,583.50/653,399.88 = 155,100.78/x
3. Step 3: Cross multiply
   435,583.50x = 653,399.88 × 155,100.78
4. Step 4: Simplify right side
   435,583.50x = 101,342,831,039.91
5. Step 5: Solve for x
   x = 101,342,831,039.91/435,583.50
6. Step 6: Final answer
   x = 232,659.94