Finding the Fourth Proportional to 81,612.82, 112,697.76 and 51,448.69

Step by Step Solution

1. Step 1: Write the proportion equation
   81,612.82 : 112,697.76 = 51,448.69 : x
2. Step 2: Convert to fraction form
   81,612.82/112,697.76 = 51,448.69/x
3. Step 3: Cross multiply
   81,612.82x = 112,697.76 × 51,448.69
4. Step 4: Simplify right side
   81,612.82x = 5,798,152,117.93
5. Step 5: Solve for x
   x = 5,798,152,117.93/81,612.82
6. Step 6: Final answer
   x = 71,044.62