Finding the Fourth Proportional to 231,173.82, 346,662.27 and 90,834

Step by Step Solution

1. Step 1: Write the proportion equation
   231,173.82 : 346,662.27 = 90,834 : x
2. Step 2: Convert to fraction form
   231,173.82/346,662.27 = 90,834/x
3. Step 3: Cross multiply
   231,173.82x = 346,662.27 × 90,834
4. Step 4: Simplify right side
   231,173.82x = 31,488,720,633.18
5. Step 5: Solve for x
   x = 31,488,720,633.18/231,173.82
6. Step 6: Final answer
   x = 136,212.31