Finding the Fourth Proportional to 108,525.30, 149,772.84 and 65,515.37

Step by Step Solution

1. Step 1: Write the proportion equation
   108,525.30 : 149,772.84 = 65,515.37 : x
2. Step 2: Convert to fraction form
   108,525.30/149,772.84 = 65,515.37/x
3. Step 3: Cross multiply
   108,525.30x = 149,772.84 × 65,515.37
4. Step 4: Simplify right side
   108,525.30x = 9,812,422,279.69
5. Step 5: Solve for x
   x = 9,812,422,279.69/108,525.30
6. Step 6: Final answer
   x = 90,415.99