Finding the Fourth Proportional to 59,776.86, 89,644.43 and 17,645.79

Step by Step Solution

1. Step 1: Write the proportion equation
   59,776.86 : 89,644.43 = 17,645.79 : x
2. Step 2: Convert to fraction form
   59,776.86/89,644.43 = 17,645.79/x
3. Step 3: Cross multiply
   59,776.86x = 89,644.43 × 17,645.79
4. Step 4: Simplify right side
   59,776.86x = 1,581,846,830.56
5. Step 5: Solve for x
   x = 1,581,846,830.56/59,776.86
6. Step 6: Final answer
   x = 26,462.53