Finding the Fourth Proportional to 59,570.79, 89,341.47 and 17,439.99

Step by Step Solution

1. Step 1: Write the proportion equation
   59,570.79 : 89,341.47 = 17,439.99 : x
2. Step 2: Convert to fraction form
   59,570.79/89,341.47 = 17,439.99/x
3. Step 3: Cross multiply
   59,570.79x = 89,341.47 × 17,439.99
4. Step 4: Simplify right side
   59,570.79x = 1,558,114,343.39
5. Step 5: Solve for x
   x = 1,558,114,343.39/59,570.79
6. Step 6: Final answer
   x = 26,155.68