Finding the Fourth Proportional to 57,499.88, 86,250.59 and 18,056.99

Step by Step Solution

1. Step 1: Write the proportion equation
   57,499.88 : 86,250.59 = 18,056.99 : x
2. Step 2: Convert to fraction form
   57,499.88/86,250.59 = 18,056.99/x
3. Step 3: Cross multiply
   57,499.88x = 86,250.59 × 18,056.99
4. Step 4: Simplify right side
   57,499.88x = 1,557,426,234.18
5. Step 5: Solve for x
   x = 1,557,426,234.18/57,499.88
6. Step 6: Final answer
   x = 27,085.73