Finding the Fourth Proportional to 53,081.31, 73,243.84 and 30,415.94

Step by Step Solution

1. Step 1: Write the proportion equation
   53,081.31 : 73,243.84 = 30,415.94 : x
2. Step 2: Convert to fraction form
   53,081.31/73,243.84 = 30,415.94/x
3. Step 3: Cross multiply
   53,081.31x = 73,243.84 × 30,415.94
4. Step 4: Simplify right side
   53,081.31x = 2,227,780,242.81
5. Step 5: Solve for x
   x = 2,227,780,242.81/53,081.31
6. Step 6: Final answer
   x = 41,969.20