Finding the Fourth Proportional to 111,402.56, 153,648.64 and 68,984.64

Step by Step Solution

1. Step 1: Write the proportion equation
   111,402.56 : 153,648.64 = 68,984.64 : x
2. Step 2: Convert to fraction form
   111,402.56/153,648.64 = 68,984.64/x
3. Step 3: Cross multiply
   111,402.56x = 153,648.64 × 68,984.64
4. Step 4: Simplify right side
   111,402.56x = 10,599,396,116.89
5. Step 5: Solve for x
   x = 10,599,396,116.89/111,402.56
6. Step 6: Final answer
   x = 95,145.00