Finding the Fourth Proportional to 89,335.24, 123,256.56 and 63,849.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,335.24 : 123,256.56 = 63,849.40 : x
2. Step 2: Convert to fraction form
   89,335.24/123,256.56 = 63,849.40/x
3. Step 3: Cross multiply
   89,335.24x = 123,256.56 × 63,849.40
4. Step 4: Simplify right side
   89,335.24x = 7,869,857,402.06
5. Step 5: Solve for x
   x = 7,869,857,402.06/89,335.24
6. Step 6: Final answer
   x = 88,093.54