Finding the Fourth Proportional to 108,749.56, 149,987.82 and 89,853.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,749.56 : 149,987.82 = 89,853.88 : x
2. Step 2: Convert to fraction form
   108,749.56/149,987.82 = 89,853.88/x
3. Step 3: Cross multiply
   108,749.56x = 149,987.82 × 89,853.88
4. Step 4: Simplify right side
   108,749.56x = 13,476,987,579.74
5. Step 5: Solve for x
   x = 13,476,987,579.74/108,749.56
6. Step 6: Final answer
   x = 123,926.82