Finding the Fourth Proportional to 64,910.16, 89,576.69 and 38,053.40

Step by Step Solution

1. Step 1: Write the proportion equation
   64,910.16 : 89,576.69 = 38,053.40 : x
2. Step 2: Convert to fraction form
   64,910.16/89,576.69 = 38,053.40/x
3. Step 3: Cross multiply
   64,910.16x = 89,576.69 × 38,053.40
4. Step 4: Simplify right side
   64,910.16x = 3,408,696,977.10
5. Step 5: Solve for x
   x = 3,408,696,977.10/64,910.16
6. Step 6: Final answer
   x = 52,514.07