Finding the Fourth Proportional to 109,388.50, 150,956.25 and 59,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,388.50 : 150,956.25 = 59,087.50 : x
2. Step 2: Convert to fraction form
   109,388.50/150,956.25 = 59,087.50/x
3. Step 3: Cross multiply
   109,388.50x = 150,956.25 × 59,087.50
4. Step 4: Simplify right side
   109,388.50x = 8,919,627,421.88
5. Step 5: Solve for x
   x = 8,919,627,421.88/109,388.50
6. Step 6: Final answer
   x = 81,540.81