Finding the Fourth Proportional to 53,453.04, 80,155.86 and 28,488.42

Step by Step Solution

1. Step 1: Write the proportion equation
   53,453.04 : 80,155.86 = 28,488.42 : x
2. Step 2: Convert to fraction form
   53,453.04/80,155.86 = 28,488.42/x
3. Step 3: Cross multiply
   53,453.04x = 80,155.86 × 28,488.42
4. Step 4: Simplify right side
   53,453.04x = 2,283,513,805.14
5. Step 5: Solve for x
   x = 2,283,513,805.14/53,453.04
6. Step 6: Final answer
   x = 42,720.00