Finding the Fourth Proportional to 231,111.42, 346,579.62 and 90,793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   231,111.42 : 346,579.62 = 90,793.50 : x
2. Step 2: Convert to fraction form
   231,111.42/346,579.62 = 90,793.50/x
3. Step 3: Cross multiply
   231,111.42x = 346,579.62 × 90,793.50
4. Step 4: Simplify right side
   231,111.42x = 31,467,176,728.47
5. Step 5: Solve for x
   x = 31,467,176,728.47/231,111.42
6. Step 6: Final answer
   x = 136,155.87