Finding the Fourth Proportional to 117,511, 162,165.18 and 64,519

Step by Step Solution

1. Step 1: Write the proportion equation
   117,511 : 162,165.18 = 64,519 : x
2. Step 2: Convert to fraction form
   117,511/162,165.18 = 64,519/x
3. Step 3: Cross multiply
   117,511x = 162,165.18 × 64,519
4. Step 4: Simplify right side
   117,511x = 10,462,735,248.42
5. Step 5: Solve for x
   x = 10,462,735,248.42/117,511
6. Step 6: Final answer
   x = 89,036.22