Finding the Fourth Proportional to 117,845.55, 162,626.55 and 64,130.55

Step by Step Solution

1. Step 1: Write the proportion equation
   117,845.55 : 162,626.55 = 64,130.55 : x
2. Step 2: Convert to fraction form
   117,845.55/162,626.55 = 64,130.55/x
3. Step 3: Cross multiply
   117,845.55x = 162,626.55 × 64,130.55
4. Step 4: Simplify right side
   117,845.55x = 10,429,330,096.10
5. Step 5: Solve for x
   x = 10,429,330,096.10/117,845.55
6. Step 6: Final answer
   x = 88,499.99