Finding the Fourth Proportional to 91,091.92, 136,642.06 and 27,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,091.92 : 136,642.06 = 27,907.50 : x
2. Step 2: Convert to fraction form
   91,091.92/136,642.06 = 27,907.50/x
3. Step 3: Cross multiply
   91,091.92x = 136,642.06 × 27,907.50
4. Step 4: Simplify right side
   91,091.92x = 3,813,338,289.45
5. Step 5: Solve for x
   x = 3,813,338,289.45/91,091.92
6. Step 6: Final answer
   x = 41,862.53