Finding the Fourth Proportional to 311,732.50, 467,676.51 and 90,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   311,732.50 : 467,676.51 = 90,116.50 : x
2. Step 2: Convert to fraction form
   311,732.50/467,676.51 = 90,116.50/x
3. Step 3: Cross multiply
   311,732.50x = 467,676.51 × 90,116.50
4. Step 4: Simplify right side
   311,732.50x = 42,145,370,213.42
5. Step 5: Solve for x
   x = 42,145,370,213.42/311,732.50
6. Step 6: Final answer
   x = 135,197.23