Finding the Fourth Proportional to 82,890.96, 124,215.48 and 41,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,890.96 : 124,215.48 = 41,280.72 : x
2. Step 2: Convert to fraction form
   82,890.96/124,215.48 = 41,280.72/x
3. Step 3: Cross multiply
   82,890.96x = 124,215.48 × 41,280.72
4. Step 4: Simplify right side
   82,890.96x = 5,127,704,449.55
5. Step 5: Solve for x
   x = 5,127,704,449.55/82,890.96
6. Step 6: Final answer
   x = 61,860.84