Finding the Fourth Proportional to 59,909.79, 89,878.52 and 17,788.94

Step by Step Solution

1. Step 1: Write the proportion equation
   59,909.79 : 89,878.52 = 17,788.94 : x
2. Step 2: Convert to fraction form
   59,909.79/89,878.52 = 17,788.94/x
3. Step 3: Cross multiply
   59,909.79x = 89,878.52 × 17,788.94
4. Step 4: Simplify right side
   59,909.79x = 1,598,843,061.23
5. Step 5: Solve for x
   x = 1,598,843,061.23/59,909.79
6. Step 6: Final answer
   x = 26,687.51