Finding the Fourth Proportional to 49,111.38, 67,776.48 and 28,980.18

Step by Step Solution

1. Step 1: Write the proportion equation
   49,111.38 : 67,776.48 = 28,980.18 : x
2. Step 2: Convert to fraction form
   49,111.38/67,776.48 = 28,980.18/x
3. Step 3: Cross multiply
   49,111.38x = 67,776.48 × 28,980.18
4. Step 4: Simplify right side
   49,111.38x = 1,964,174,590.17
5. Step 5: Solve for x
   x = 1,964,174,590.17/49,111.38
6. Step 6: Final answer
   x = 39,994.29