Finding the Fourth Proportional to 64,899.98, 89,581.12 and 38,048.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,899.98 : 89,581.12 = 38,048.30 : x
2. Step 2: Convert to fraction form
   64,899.98/89,581.12 = 38,048.30/x
3. Step 3: Cross multiply
   64,899.98x = 89,581.12 × 38,048.30
4. Step 4: Simplify right side
   64,899.98x = 3,408,409,328.10
5. Step 5: Solve for x
   x = 3,408,409,328.10/64,899.98
6. Step 6: Final answer
   x = 52,517.88