Finding the Fourth Proportional to 81,156.57, 111,995.83 and 45,346.61

Step by Step Solution

1. Step 1: Write the proportion equation
   81,156.57 : 111,995.83 = 45,346.61 : x
2. Step 2: Convert to fraction form
   81,156.57/111,995.83 = 45,346.61/x
3. Step 3: Cross multiply
   81,156.57x = 111,995.83 × 45,346.61
4. Step 4: Simplify right side
   81,156.57x = 5,078,630,551.29
5. Step 5: Solve for x
   x = 5,078,630,551.29/81,156.57
6. Step 6: Final answer
   x = 62,578.18