Finding the Fourth Proportional to 77,379.34, 116,077.38 and 33,010.78

Step by Step Solution

1. Step 1: Write the proportion equation
   77,379.34 : 116,077.38 = 33,010.78 : x
2. Step 2: Convert to fraction form
   77,379.34/116,077.38 = 33,010.78/x
3. Step 3: Cross multiply
   77,379.34x = 116,077.38 × 33,010.78
4. Step 4: Simplify right side
   77,379.34x = 3,831,804,854.16
5. Step 5: Solve for x
   x = 3,831,804,854.16/77,379.34
6. Step 6: Final answer
   x = 49,519.74