Finding the Fourth Proportional to 250,124.94, 375,137.46 and 90,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   250,124.94 : 375,137.46 = 90,196.47 : x
2. Step 2: Convert to fraction form
   250,124.94/375,137.46 = 90,196.47/x
3. Step 3: Cross multiply
   250,124.94x = 375,137.46 × 90,196.47
4. Step 4: Simplify right side
   250,124.94x = 33,836,074,656.77
5. Step 5: Solve for x
   x = 33,836,074,656.77/250,124.94
6. Step 6: Final answer
   x = 135,276.69