Finding the Fourth Proportional to 117,896.60, 162,692.33 and 64,180.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,896.60 : 162,692.33 = 64,180.50 : x
2. Step 2: Convert to fraction form
   117,896.60/162,692.33 = 64,180.50/x
3. Step 3: Cross multiply
   117,896.60x = 162,692.33 × 64,180.50
4. Step 4: Simplify right side
   117,896.60x = 10,441,675,085.57
5. Step 5: Solve for x
   x = 10,441,675,085.57/117,896.60
6. Step 6: Final answer
   x = 88,566.38