Finding the Fourth Proportional to 117,980.50, 162,814.52 and 64,265.96

Step by Step Solution

1. Step 1: Write the proportion equation
   117,980.50 : 162,814.52 = 64,265.96 : x
2. Step 2: Convert to fraction form
   117,980.50/162,814.52 = 64,265.96/x
3. Step 3: Cross multiply
   117,980.50x = 162,814.52 × 64,265.96
4. Step 4: Simplify right side
   117,980.50x = 10,463,431,429.74
5. Step 5: Solve for x
   x = 10,463,431,429.74/117,980.50
6. Step 6: Final answer
   x = 88,687.80