Finding the Fourth Proportional to 404,384.55, 606,554.95 and 123,902.61

Step by Step Solution

1. Step 1: Write the proportion equation
   404,384.55 : 606,554.95 = 123,902.61 : x
2. Step 2: Convert to fraction form
   404,384.55/606,554.95 = 123,902.61/x
3. Step 3: Cross multiply
   404,384.55x = 606,554.95 × 123,902.61
4. Step 4: Simplify right side
   404,384.55x = 75,153,738,070.89
5. Step 5: Solve for x
   x = 75,153,738,070.89/404,384.55
6. Step 6: Final answer
   x = 185,847.21