Finding the Fourth Proportional to 53,019.09, 79,526.55 and 17,958.74

Step by Step Solution

1. Step 1: Write the proportion equation
   53,019.09 : 79,526.55 = 17,958.74 : x
2. Step 2: Convert to fraction form
   53,019.09/79,526.55 = 17,958.74/x
3. Step 3: Cross multiply
   53,019.09x = 79,526.55 × 17,958.74
4. Step 4: Simplify right side
   53,019.09x = 1,428,196,634.55
5. Step 5: Solve for x
   x = 1,428,196,634.55/53,019.09
6. Step 6: Final answer
   x = 26,937.41