Finding the Fourth Proportional to 117,483.72, 162,128.76 and 63,769.20

Step by Step Solution

1. Step 1: Write the proportion equation
   117,483.72 : 162,128.76 = 63,769.20 : x
2. Step 2: Convert to fraction form
   117,483.72/162,128.76 = 63,769.20/x
3. Step 3: Cross multiply
   117,483.72x = 162,128.76 × 63,769.20
4. Step 4: Simplify right side
   117,483.72x = 10,338,821,322.19
5. Step 5: Solve for x
   x = 10,338,821,322.19/117,483.72
6. Step 6: Final answer
   x = 88,002.16