Finding the Fourth Proportional to 117,925.85, 162,735.56 and 64,209.89

Step by Step Solution

1. Step 1: Write the proportion equation
   117,925.85 : 162,735.56 = 64,209.89 : x
2. Step 2: Convert to fraction form
   117,925.85/162,735.56 = 64,209.89/x
3. Step 3: Cross multiply
   117,925.85x = 162,735.56 × 64,209.89
4. Step 4: Simplify right side
   117,925.85x = 10,449,232,406.69
5. Step 5: Solve for x
   x = 10,449,232,406.69/117,925.85
6. Step 6: Final answer
   x = 88,608.50