Finding the Fourth Proportional to 157,663.49, 217,570.12 and 89,675.33

Step by Step Solution

1. Step 1: Write the proportion equation
   157,663.49 : 217,570.12 = 89,675.33 : x
2. Step 2: Convert to fraction form
   157,663.49/217,570.12 = 89,675.33/x
3. Step 3: Cross multiply
   157,663.49x = 217,570.12 × 89,675.33
4. Step 4: Simplify right side
   157,663.49x = 19,510,670,997.10
5. Step 5: Solve for x
   x = 19,510,670,997.10/157,663.49
6. Step 6: Final answer
   x = 123,748.82