Finding the Fourth Proportional to 143,053.21, 197,404.24 and 89,335.02

Step by Step Solution

1. Step 1: Write the proportion equation
   143,053.21 : 197,404.24 = 89,335.02 : x
2. Step 2: Convert to fraction form
   143,053.21/197,404.24 = 89,335.02/x
3. Step 3: Cross multiply
   143,053.21x = 197,404.24 × 89,335.02
4. Step 4: Simplify right side
   143,053.21x = 17,635,111,728.48
5. Step 5: Solve for x
   x = 17,635,111,728.48/143,053.21
6. Step 6: Final answer
   x = 123,276.59