Finding the Fourth Proportional to 59,916.81, 89,877.50 and 19,939.37

Step by Step Solution

1. Step 1: Write the proportion equation
   59,916.81 : 89,877.50 = 19,939.37 : x
2. Step 2: Convert to fraction form
   59,916.81/89,877.50 = 19,939.37/x
3. Step 3: Cross multiply
   59,916.81x = 89,877.50 × 19,939.37
4. Step 4: Simplify right side
   59,916.81x = 1,792,100,252.86
5. Step 5: Solve for x
   x = 1,792,100,252.86/59,916.81
6. Step 6: Final answer
   x = 29,909.81