Finding the Fourth Proportional to 117,967.10, 165,620.50 and 117,967.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,967.10 : 165,620.50 = 117,967.10 : x
2. Step 2: Convert to fraction form
   117,967.10/165,620.50 = 117,967.10/x
3. Step 3: Cross multiply
   117,967.10x = 165,620.50 × 117,967.10
4. Step 4: Simplify right side
   117,967.10x = 19,537,770,085.55
5. Step 5: Solve for x
   x = 19,537,770,085.55/117,967.10
6. Step 6: Final answer
   x = 165,620.50