Finding the Fourth Proportional to 140,156.09, 193,385.84 and 89,150.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,156.09 : 193,385.84 = 89,150.25 : x
2. Step 2: Convert to fraction form
   140,156.09/193,385.84 = 89,150.25/x
3. Step 3: Cross multiply
   140,156.09x = 193,385.84 × 89,150.25
4. Step 4: Simplify right side
   140,156.09x = 17,240,395,536.71
5. Step 5: Solve for x
   x = 17,240,395,536.71/140,156.09
6. Step 6: Final answer
   x = 123,008.54