Finding the Fourth Proportional to 89,548.99, 123,460.48 and 64,997.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,548.99 : 123,460.48 = 64,997.73 : x
2. Step 2: Convert to fraction form
   89,548.99/123,460.48 = 64,997.73/x
3. Step 3: Cross multiply
   89,548.99x = 123,460.48 × 64,997.73
4. Step 4: Simplify right side
   89,548.99x = 8,024,650,944.71
5. Step 5: Solve for x
   x = 8,024,650,944.71/89,548.99
6. Step 6: Final answer
   x = 89,611.85