Finding the Fourth Proportional to 117,897.60, 162,697 and 64,183.06

Step by Step Solution

1. Step 1: Write the proportion equation
   117,897.60 : 162,697 = 64,183.06 : x
2. Step 2: Convert to fraction form
   117,897.60/162,697 = 64,183.06/x
3. Step 3: Cross multiply
   117,897.60x = 162,697 × 64,183.06
4. Step 4: Simplify right side
   117,897.60x = 10,442,391,312.82
5. Step 5: Solve for x
   x = 10,442,391,312.82/117,897.60
6. Step 6: Final answer
   x = 88,571.70