Finding the Fourth Proportional to 112,899.06, 155,765.25 and 65,146.14

Step by Step Solution

1. Step 1: Write the proportion equation
   112,899.06 : 155,765.25 = 65,146.14 : x
2. Step 2: Convert to fraction form
   112,899.06/155,765.25 = 65,146.14/x
3. Step 3: Cross multiply
   112,899.06x = 155,765.25 × 65,146.14
4. Step 4: Simplify right side
   112,899.06x = 10,147,504,783.64
5. Step 5: Solve for x
   x = 10,147,504,783.64/112,899.06
6. Step 6: Final answer
   x = 89,881.22