Finding the Fourth Proportional to 53,978.89, 74,491.01 and 30,107.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,978.89 : 74,491.01 = 30,107.10 : x
2. Step 2: Convert to fraction form
   53,978.89/74,491.01 = 30,107.10/x
3. Step 3: Cross multiply
   53,978.89x = 74,491.01 × 30,107.10
4. Step 4: Simplify right side
   53,978.89x = 2,242,708,287.17
5. Step 5: Solve for x
   x = 2,242,708,287.17/53,978.89
6. Step 6: Final answer
   x = 41,547.88