Finding the Fourth Proportional to 64,805.32, 89,431.33 and 34,997.32

Step by Step Solution

1. Step 1: Write the proportion equation
   64,805.32 : 89,431.33 = 34,997.32 : x
2. Step 2: Convert to fraction form
   64,805.32/89,431.33 = 34,997.32/x
3. Step 3: Cross multiply
   64,805.32x = 89,431.33 × 34,997.32
4. Step 4: Simplify right side
   64,805.32x = 3,129,856,426.88
5. Step 5: Solve for x
   x = 3,129,856,426.88/64,805.32
6. Step 6: Final answer
   x = 48,296.29