Finding the Fourth Proportional to 45,978.39, 63,457.69 and 38,309.49

Step by Step Solution

1. Step 1: Write the proportion equation
   45,978.39 : 63,457.69 = 38,309.49 : x
2. Step 2: Convert to fraction form
   45,978.39/63,457.69 = 38,309.49/x
3. Step 3: Cross multiply
   45,978.39x = 63,457.69 × 38,309.49
4. Step 4: Simplify right side
   45,978.39x = 2,431,031,740.48
5. Step 5: Solve for x
   x = 2,431,031,740.48/45,978.39
6. Step 6: Final answer
   x = 52,873.36