Finding the Fourth Proportional to 38,718, 58,086.72 and 11,016

Step by Step Solution

1. Step 1: Write the proportion equation
   38,718 : 58,086.72 = 11,016 : x
2. Step 2: Convert to fraction form
   38,718/58,086.72 = 11,016/x
3. Step 3: Cross multiply
   38,718x = 58,086.72 × 11,016
4. Step 4: Simplify right side
   38,718x = 639,883,307.52
5. Step 5: Solve for x
   x = 639,883,307.52/38,718
6. Step 6: Final answer
   x = 16,526.77