Finding the Fourth Proportional to 108,895.10, 150,264.78 and 61,137.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,895.10 : 150,264.78 = 61,137.50 : x
2. Step 2: Convert to fraction form
   108,895.10/150,264.78 = 61,137.50/x
3. Step 3: Cross multiply
   108,895.10x = 150,264.78 × 61,137.50
4. Step 4: Simplify right side
   108,895.10x = 9,186,812,987.25
5. Step 5: Solve for x
   x = 9,186,812,987.25/108,895.10
6. Step 6: Final answer
   x = 84,363.88