Finding the Fourth Proportional to 143,886.51, 215,849.45 and 49,091.23

Step by Step Solution

1. Step 1: Write the proportion equation
   143,886.51 : 215,849.45 = 49,091.23 : x
2. Step 2: Convert to fraction form
   143,886.51/215,849.45 = 49,091.23/x
3. Step 3: Cross multiply
   143,886.51x = 215,849.45 × 49,091.23
4. Step 4: Simplify right side
   143,886.51x = 10,596,314,995.32
5. Step 5: Solve for x
   x = 10,596,314,995.32/143,886.51
6. Step 6: Final answer
   x = 73,643.56