Finding the Fourth Proportional to 143,832.48, 215,750.52 and 55,091.31

Step by Step Solution

1. Step 1: Write the proportion equation
   143,832.48 : 215,750.52 = 55,091.31 : x
2. Step 2: Convert to fraction form
   143,832.48/215,750.52 = 55,091.31/x
3. Step 3: Cross multiply
   143,832.48x = 215,750.52 × 55,091.31
4. Step 4: Simplify right side
   143,832.48x = 11,885,978,779.98
5. Step 5: Solve for x
   x = 11,885,978,779.98/143,832.48
6. Step 6: Final answer
   x = 82,637.65