Finding the Fourth Proportional to 53,288.69, 79,915.71 and 17,740.45

Step by Step Solution

1. Step 1: Write the proportion equation
   53,288.69 : 79,915.71 = 17,740.45 : x
2. Step 2: Convert to fraction form
   53,288.69/79,915.71 = 17,740.45/x
3. Step 3: Cross multiply
   53,288.69x = 79,915.71 × 17,740.45
4. Step 4: Simplify right side
   53,288.69x = 1,417,740,823.89
5. Step 5: Solve for x
   x = 1,417,740,823.89/53,288.69
6. Step 6: Final answer
   x = 26,604.91