Finding the Fourth Proportional to 117,986.93, 162,821.69 and 64,271.81

Step by Step Solution

1. Step 1: Write the proportion equation
   117,986.93 : 162,821.69 = 64,271.81 : x
2. Step 2: Convert to fraction form
   117,986.93/162,821.69 = 64,271.81/x
3. Step 3: Cross multiply
   117,986.93x = 162,821.69 × 64,271.81
4. Step 4: Simplify right side
   117,986.93x = 10,464,844,723.56
5. Step 5: Solve for x
   x = 10,464,844,723.56/117,986.93
6. Step 6: Final answer
   x = 88,694.95