Finding the Fourth Proportional to 59,911.79, 89,881.52 and 17,790.94

Step by Step Solution

1. Step 1: Write the proportion equation
   59,911.79 : 89,881.52 = 17,790.94 : x
2. Step 2: Convert to fraction form
   59,911.79/89,881.52 = 17,790.94/x
3. Step 3: Cross multiply
   59,911.79x = 89,881.52 × 17,790.94
4. Step 4: Simplify right side
   59,911.79x = 1,599,076,729.43
5. Step 5: Solve for x
   x = 1,599,076,729.43/59,911.79
6. Step 6: Final answer
   x = 26,690.52