Finding the Fourth Proportional to 53,064.17, 79,579.40 and 17,518.89

Step by Step Solution

1. Step 1: Write the proportion equation
   53,064.17 : 79,579.40 = 17,518.89 : x
2. Step 2: Convert to fraction form
   53,064.17/79,579.40 = 17,518.89/x
3. Step 3: Cross multiply
   53,064.17x = 79,579.40 × 17,518.89
4. Step 4: Simplify right side
   53,064.17x = 1,394,142,667.27
5. Step 5: Solve for x
   x = 1,394,142,667.27/53,064.17
6. Step 6: Final answer
   x = 26,272.77