Finding the Fourth Proportional to 103,947.98, 143,448.41 and 56,201.32

Step by Step Solution

1. Step 1: Write the proportion equation
   103,947.98 : 143,448.41 = 56,201.32 : x
2. Step 2: Convert to fraction form
   103,947.98/143,448.41 = 56,201.32/x
3. Step 3: Cross multiply
   103,947.98x = 143,448.41 × 56,201.32
4. Step 4: Simplify right side
   103,947.98x = 8,061,990,778.51
5. Step 5: Solve for x
   x = 8,061,990,778.51/103,947.98
6. Step 6: Final answer
   x = 77,557.94