Finding the Fourth Proportional to 53,073.06, 79,515.72 and 28,057.62

Step by Step Solution

1. Step 1: Write the proportion equation
   53,073.06 : 79,515.72 = 28,057.62 : x
2. Step 2: Convert to fraction form
   53,073.06/79,515.72 = 28,057.62/x
3. Step 3: Cross multiply
   53,073.06x = 79,515.72 × 28,057.62
4. Step 4: Simplify right side
   53,073.06x = 2,231,021,855.79
5. Step 5: Solve for x
   x = 2,231,021,855.79/53,073.06
6. Step 6: Final answer
   x = 42,036.80