Finding the Fourth Proportional to 91,922.10, 137,915.55 and 88,682.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,922.10 : 137,915.55 = 88,682.10 : x
2. Step 2: Convert to fraction form
   91,922.10/137,915.55 = 88,682.10/x
3. Step 3: Cross multiply
   91,922.10x = 137,915.55 × 88,682.10
4. Step 4: Simplify right side
   91,922.10x = 12,230,640,596.66
5. Step 5: Solve for x
   x = 12,230,640,596.66/91,922.10
6. Step 6: Final answer
   x = 133,054.41