Finding the Fourth Proportional to 55,810.72, 77,016.81 and 30,316.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,810.72 : 77,016.81 = 30,316.15 : x
2. Step 2: Convert to fraction form
   55,810.72/77,016.81 = 30,316.15/x
3. Step 3: Cross multiply
   55,810.72x = 77,016.81 × 30,316.15
4. Step 4: Simplify right side
   55,810.72x = 2,334,853,164.48
5. Step 5: Solve for x
   x = 2,334,853,164.48/55,810.72
6. Step 6: Final answer
   x = 41,835.21