Finding the Fourth Proportional to 53,105.09, 79,669.35 and 17,577.47

Step by Step Solution

1. Step 1: Write the proportion equation
   53,105.09 : 79,669.35 = 17,577.47 : x
2. Step 2: Convert to fraction form
   53,105.09/79,669.35 = 17,577.47/x
3. Step 3: Cross multiply
   53,105.09x = 79,669.35 × 17,577.47
4. Step 4: Simplify right side
   53,105.09x = 1,400,385,808.72
5. Step 5: Solve for x
   x = 1,400,385,808.72/53,105.09
6. Step 6: Final answer
   x = 26,370.09