Finding the Fourth Proportional to 117,595.50, 162,281.79 and 64,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,595.50 : 162,281.79 = 64,603.50 : x
2. Step 2: Convert to fraction form
   117,595.50/162,281.79 = 64,603.50/x
3. Step 3: Cross multiply
   117,595.50x = 162,281.79 × 64,603.50
4. Step 4: Simplify right side
   117,595.50x = 10,483,971,620.27
5. Step 5: Solve for x
   x = 10,483,971,620.27/117,595.50
6. Step 6: Final answer
   x = 89,152.83