Finding the Fourth Proportional to 81,460.05, 112,408.72 and 45,643.13

Step by Step Solution

1. Step 1: Write the proportion equation
   81,460.05 : 112,408.72 = 45,643.13 : x
2. Step 2: Convert to fraction form
   81,460.05/112,408.72 = 45,643.13/x
3. Step 3: Cross multiply
   81,460.05x = 112,408.72 × 45,643.13
4. Step 4: Simplify right side
   81,460.05x = 5,130,685,565.47
5. Step 5: Solve for x
   x = 5,130,685,565.47/81,460.05
6. Step 6: Final answer
   x = 62,984.07