Finding the Fourth Proportional to 81,153.86, 111,992.88 and 45,345.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81,153.86 : 111,992.88 = 45,345.38 : x
2. Step 2: Convert to fraction form
   81,153.86/111,992.88 = 45,345.38/x
3. Step 3: Cross multiply
   81,153.86x = 111,992.88 × 45,345.38
4. Step 4: Simplify right side
   81,153.86x = 5,078,359,140.93
5. Step 5: Solve for x
   x = 5,078,359,140.93/81,153.86
6. Step 6: Final answer
   x = 62,576.93