Finding the Fourth Proportional to 250,410.78, 375,145.56 and 123,904.17

Step by Step Solution

1. Step 1: Write the proportion equation
   250,410.78 : 375,145.56 = 123,904.17 : x
2. Step 2: Convert to fraction form
   250,410.78/375,145.56 = 123,904.17/x
3. Step 3: Cross multiply
   250,410.78x = 375,145.56 × 123,904.17
4. Step 4: Simplify right side
   250,410.78x = 46,482,099,240.99
5. Step 5: Solve for x
   x = 46,482,099,240.99/250,410.78
6. Step 6: Final answer
   x = 185,623.40