Finding the Fourth Proportional to 143,066.88, 214,638.59 and 49,572.63

Step by Step Solution

1. Step 1: Write the proportion equation
   143,066.88 : 214,638.59 = 49,572.63 : x
2. Step 2: Convert to fraction form
   143,066.88/214,638.59 = 49,572.63/x
3. Step 3: Cross multiply
   143,066.88x = 214,638.59 × 49,572.63
4. Step 4: Simplify right side
   143,066.88x = 10,640,199,405.79
5. Step 5: Solve for x
   x = 10,640,199,405.79/143,066.88
6. Step 6: Final answer
   x = 74,372.21