Finding the Fourth Proportional to 117,868.39, 162,661.82 and 64,156.88

Step by Step Solution

1. Step 1: Write the proportion equation
   117,868.39 : 162,661.82 = 64,156.88 : x
2. Step 2: Convert to fraction form
   117,868.39/162,661.82 = 64,156.88/x
3. Step 3: Cross multiply
   117,868.39x = 162,661.82 × 64,156.88
4. Step 4: Simplify right side
   117,868.39x = 10,435,874,866.32
5. Step 5: Solve for x
   x = 10,435,874,866.32/117,868.39
6. Step 6: Final answer
   x = 88,538.37