Finding the Fourth Proportional to 89,003.88, 133,573.86 and 65,637

Step by Step Solution

1. Step 1: Write the proportion equation
   89,003.88 : 133,573.86 = 65,637 : x
2. Step 2: Convert to fraction form
   89,003.88/133,573.86 = 65,637/x
3. Step 3: Cross multiply
   89,003.88x = 133,573.86 × 65,637
4. Step 4: Simplify right side
   89,003.88x = 8,767,387,448.82
5. Step 5: Solve for x
   x = 8,767,387,448.82/89,003.88
6. Step 6: Final answer
   x = 98,505.68