Finding the Fourth Proportional to 117,512, 162,166.56 and 64,520

Step by Step Solution

1. Step 1: Write the proportion equation
   117,512 : 162,166.56 = 64,520 : x
2. Step 2: Convert to fraction form
   117,512/162,166.56 = 64,520/x
3. Step 3: Cross multiply
   117,512x = 162,166.56 × 64,520
4. Step 4: Simplify right side
   117,512x = 10,462,986,451.20
5. Step 5: Solve for x
   x = 10,462,986,451.20/117,512
6. Step 6: Final answer
   x = 89,037.60