Finding the Fourth Proportional to 108,890.10, 150,257.88 and 61,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,890.10 : 150,257.88 = 61,132.50 : x
2. Step 2: Convert to fraction form
   108,890.10/150,257.88 = 61,132.50/x
3. Step 3: Cross multiply
   108,890.10x = 150,257.88 × 61,132.50
4. Step 4: Simplify right side
   108,890.10x = 9,185,639,849.10
5. Step 5: Solve for x
   x = 9,185,639,849.10/108,890.10
6. Step 6: Final answer
   x = 84,356.98