Finding the Fourth Proportional to 51,978.04, 71,748.11 and 30,757.25

Step by Step Solution

1. Step 1: Write the proportion equation
   51,978.04 : 71,748.11 = 30,757.25 : x
2. Step 2: Convert to fraction form
   51,978.04/71,748.11 = 30,757.25/x
3. Step 3: Cross multiply
   51,978.04x = 71,748.11 × 30,757.25
4. Step 4: Simplify right side
   51,978.04x = 2,206,774,812.56
5. Step 5: Solve for x
   x = 2,206,774,812.56/51,978.04
6. Step 6: Final answer
   x = 42,455.91