Finding the Fourth Proportional to 53,900.72, 74,380.64 and 30,030

Step by Step Solution

1. Step 1: Write the proportion equation
   53,900.72 : 74,380.64 = 30,030 : x
2. Step 2: Convert to fraction form
   53,900.72/74,380.64 = 30,030/x
3. Step 3: Cross multiply
   53,900.72x = 74,380.64 × 30,030
4. Step 4: Simplify right side
   53,900.72x = 2,233,650,619.20
5. Step 5: Solve for x
   x = 2,233,650,619.20/53,900.72
6. Step 6: Final answer
   x = 41,440.09