Finding the Fourth Proportional to 250,123.55, 375,089.64 and 123,720.41

Step by Step Solution

1. Step 1: Write the proportion equation
   250,123.55 : 375,089.64 = 123,720.41 : x
2. Step 2: Convert to fraction form
   250,123.55/375,089.64 = 123,720.41/x
3. Step 3: Cross multiply
   250,123.55x = 375,089.64 × 123,720.41
4. Step 4: Simplify right side
   250,123.55x = 46,406,244,521.33
5. Step 5: Solve for x
   x = 46,406,244,521.33/250,123.55
6. Step 6: Final answer
   x = 185,533.29