Finding the Fourth Proportional to 104,111.97, 143,674.32 and 56,365.31

Step by Step Solution

1. Step 1: Write the proportion equation
   104,111.97 : 143,674.32 = 56,365.31 : x
2. Step 2: Convert to fraction form
   104,111.97/143,674.32 = 56,365.31/x
3. Step 3: Cross multiply
   104,111.97x = 143,674.32 × 56,365.31
4. Step 4: Simplify right side
   104,111.97x = 8,098,246,867.47
5. Step 5: Solve for x
   x = 8,098,246,867.47/104,111.97
6. Step 6: Final answer
   x = 77,784.01