Finding the Fourth Proportional to 151,301.54, 208,796.71 and 90,873.21

Step by Step Solution

1. Step 1: Write the proportion equation
   151,301.54 : 208,796.71 = 90,873.21 : x
2. Step 2: Convert to fraction form
   151,301.54/208,796.71 = 90,873.21/x
3. Step 3: Cross multiply
   151,301.54x = 208,796.71 × 90,873.21
4. Step 4: Simplify right side
   151,301.54x = 18,974,027,082.43
5. Step 5: Solve for x
   x = 18,974,027,082.43/151,301.54
6. Step 6: Final answer
   x = 125,405.38