Finding the Fourth Proportional to 143,320.75, 214,985.98 and 38,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,320.75 : 214,985.98 = 38,139.82 : x
2. Step 2: Convert to fraction form
   143,320.75/214,985.98 = 38,139.82/x
3. Step 3: Cross multiply
   143,320.75x = 214,985.98 × 38,139.82
4. Step 4: Simplify right side
   143,320.75x = 8,199,526,579.72
5. Step 5: Solve for x
   x = 8,199,526,579.72/143,320.75
6. Step 6: Final answer
   x = 57,211.02