Finding the Fourth Proportional to 109,558.50, 151,191 and 59,257.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,558.50 : 151,191 = 59,257.50 : x
2. Step 2: Convert to fraction form
   109,558.50/151,191 = 59,257.50/x
3. Step 3: Cross multiply
   109,558.50x = 151,191 × 59,257.50
4. Step 4: Simplify right side
   109,558.50x = 8,959,200,682.50
5. Step 5: Solve for x
   x = 8,959,200,682.50/109,558.50
6. Step 6: Final answer
   x = 81,775.50