Finding the Fourth Proportional to 143,071.31, 214,645.34 and 49,577.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,071.31 : 214,645.34 = 49,577.06 : x
2. Step 2: Convert to fraction form
   143,071.31/214,645.34 = 49,577.06/x
3. Step 3: Cross multiply
   143,071.31x = 214,645.34 × 49,577.06
4. Step 4: Simplify right side
   143,071.31x = 10,641,485,560.46
5. Step 5: Solve for x
   x = 10,641,485,560.46/143,071.31
6. Step 6: Final answer
   x = 74,378.89