Finding the Fourth Proportional to 58,578, 80,844 and 38,451.12

Step by Step Solution

1. Step 1: Write the proportion equation
   58,578 : 80,844 = 38,451.12 : x
2. Step 2: Convert to fraction form
   58,578/80,844 = 38,451.12/x
3. Step 3: Cross multiply
   58,578x = 80,844 × 38,451.12
4. Step 4: Simplify right side
   58,578x = 3,108,542,345.28
5. Step 5: Solve for x
   x = 3,108,542,345.28/58,578
6. Step 6: Final answer
   x = 53,066.72