Finding the Fourth Proportional to 117,869.12, 162,659.37 and 64,154.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,869.12 : 162,659.37 = 64,154.52 : x
2. Step 2: Convert to fraction form
   117,869.12/162,659.37 = 64,154.52/x
3. Step 3: Cross multiply
   117,869.12x = 162,659.37 × 64,154.52
4. Step 4: Simplify right side
   117,869.12x = 10,435,333,805.85
5. Step 5: Solve for x
   x = 10,435,333,805.85/117,869.12
6. Step 6: Final answer
   x = 88,533.23