Finding the Fourth Proportional to 108,069.50, 149,153.20 and 63,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,069.50 : 149,153.20 = 63,357.50 : x
2. Step 2: Convert to fraction form
   108,069.50/149,153.20 = 63,357.50/x
3. Step 3: Cross multiply
   108,069.50x = 149,153.20 × 63,357.50
4. Step 4: Simplify right side
   108,069.50x = 9,449,973,869
5. Step 5: Solve for x
   x = 9,449,973,869/108,069.50
6. Step 6: Final answer
   x = 87,443.49