Finding the Fourth Proportional to 140,063.50, 193,287.63 and 89,762.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,063.50 : 193,287.63 = 89,762.50 : x
2. Step 2: Convert to fraction form
   140,063.50/193,287.63 = 89,762.50/x
3. Step 3: Cross multiply
   140,063.50x = 193,287.63 × 89,762.50
4. Step 4: Simplify right side
   140,063.50x = 17,349,980,887.88
5. Step 5: Solve for x
   x = 17,349,980,887.88/140,063.50
6. Step 6: Final answer
   x = 123,872.25