Finding the Fourth Proportional to 151,097.21, 226,086.78 and 91,160.45

Step by Step Solution

1. Step 1: Write the proportion equation
   151,097.21 : 226,086.78 = 91,160.45 : x
2. Step 2: Convert to fraction form
   151,097.21/226,086.78 = 91,160.45/x
3. Step 3: Cross multiply
   151,097.21x = 226,086.78 × 91,160.45
4. Step 4: Simplify right side
   151,097.21x = 20,610,172,603.85
5. Step 5: Solve for x
   x = 20,610,172,603.85/151,097.21
6. Step 6: Final answer
   x = 136,403.40