Finding the Fourth Proportional to 81,323.49, 112,147.69 and 63,411.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,323.49 : 112,147.69 = 63,411.96 : x
2. Step 2: Convert to fraction form
   81,323.49/112,147.69 = 63,411.96/x
3. Step 3: Cross multiply
   81,323.49x = 112,147.69 × 63,411.96
4. Step 4: Simplify right side
   81,323.49x = 7,111,505,213.29
5. Step 5: Solve for x
   x = 7,111,505,213.29/81,323.49
6. Step 6: Final answer
   x = 87,447.12