Finding the Fourth Proportional to 143,422.98, 215,167.68 and 48,648.12

Step by Step Solution

1. Step 1: Write the proportion equation
   143,422.98 : 215,167.68 = 48,648.12 : x
2. Step 2: Convert to fraction form
   143,422.98/215,167.68 = 48,648.12/x
3. Step 3: Cross multiply
   143,422.98x = 215,167.68 × 48,648.12
4. Step 4: Simplify right side
   143,422.98x = 10,467,503,116.76
5. Step 5: Solve for x
   x = 10,467,503,116.76/143,422.98
6. Step 6: Final answer
   x = 72,983.44