Finding the Fourth Proportional to 143,577.42, 197,924.37 and 91,888.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,577.42 : 197,924.37 = 91,888.82 : x
2. Step 2: Convert to fraction form
   143,577.42/197,924.37 = 91,888.82/x
3. Step 3: Cross multiply
   143,577.42x = 197,924.37 × 91,888.82
4. Step 4: Simplify right side
   143,577.42x = 18,187,036,808.54
5. Step 5: Solve for x
   x = 18,187,036,808.54/143,577.42
6. Step 6: Final answer
   x = 126,670.59