Finding the Fourth Proportional to 118,866.10, 166,101.50 and 118,866.10

Step by Step Solution

1. Step 1: Write the proportion equation
   118,866.10 : 166,101.50 = 118,866.10 : x
2. Step 2: Convert to fraction form
   118,866.10/166,101.50 = 118,866.10/x
3. Step 3: Cross multiply
   118,866.10x = 166,101.50 × 118,866.10
4. Step 4: Simplify right side
   118,866.10x = 19,743,837,509.15
5. Step 5: Solve for x
   x = 19,743,837,509.15/118,866.10
6. Step 6: Final answer
   x = 166,101.50