Finding the Fourth Proportional to 103,961.94, 143,467.56 and 56,215.32

Step by Step Solution

1. Step 1: Write the proportion equation
   103,961.94 : 143,467.56 = 56,215.32 : x
2. Step 2: Convert to fraction form
   103,961.94/143,467.56 = 56,215.32/x
3. Step 3: Cross multiply
   103,961.94x = 143,467.56 × 56,215.32
4. Step 4: Simplify right side
   103,961.94x = 8,065,074,795.02
5. Step 5: Solve for x
   x = 8,065,074,795.02/103,961.94
6. Step 6: Final answer
   x = 77,577.19