Finding the Fourth Proportional to 375,404.43, 563,101.89 and 91,097.31

Step by Step Solution

1. Step 1: Write the proportion equation
   375,404.43 : 563,101.89 = 91,097.31 : x
2. Step 2: Convert to fraction form
   375,404.43/563,101.89 = 91,097.31/x
3. Step 3: Cross multiply
   375,404.43x = 563,101.89 × 91,097.31
4. Step 4: Simplify right side
   375,404.43x = 51,297,067,434.92
5. Step 5: Solve for x
   x = 51,297,067,434.92/375,404.43
6. Step 6: Final answer
   x = 136,644.81