Finding the Fourth Proportional to 117,039, 161,513.72 and 66,062.46

Step by Step Solution

1. Step 1: Write the proportion equation
   117,039 : 161,513.72 = 66,062.46 : x
2. Step 2: Convert to fraction form
   117,039/161,513.72 = 66,062.46/x
3. Step 3: Cross multiply
   117,039x = 161,513.72 × 66,062.46
4. Step 4: Simplify right side
   117,039x = 10,669,993,666.95
5. Step 5: Solve for x
   x = 10,669,993,666.95/117,039
6. Step 6: Final answer
   x = 91,166.14