Finding the Fourth Proportional to 117,742.20, 162,487.31 and 64,030.35

Step by Step Solution

1. Step 1: Write the proportion equation
   117,742.20 : 162,487.31 = 64,030.35 : x
2. Step 2: Convert to fraction form
   117,742.20/162,487.31 = 64,030.35/x
3. Step 3: Cross multiply
   117,742.20x = 162,487.31 × 64,030.35
4. Step 4: Simplify right side
   117,742.20x = 10,404,119,329.86
5. Step 5: Solve for x
   x = 10,404,119,329.86/117,742.20
6. Step 6: Final answer
   x = 88,363.55