Finding the Fourth Proportional to 89,547.99, 123,459.11 and 64,996.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,547.99 : 123,459.11 = 64,996.73 : x
2. Step 2: Convert to fraction form
   89,547.99/123,459.11 = 64,996.73/x
3. Step 3: Cross multiply
   89,547.99x = 123,459.11 × 64,996.73
4. Step 4: Simplify right side
   89,547.99x = 8,024,437,496.43
5. Step 5: Solve for x
   x = 8,024,437,496.43/89,547.99
6. Step 6: Final answer
   x = 89,610.47