Finding the Fourth Proportional to 49,978.71, 74,907.45 and 36,708.03

Step by Step Solution

1. Step 1: Write the proportion equation
   49,978.71 : 74,907.45 = 36,708.03 : x
2. Step 2: Convert to fraction form
   49,978.71/74,907.45 = 36,708.03/x
3. Step 3: Cross multiply
   49,978.71x = 74,907.45 × 36,708.03
4. Step 4: Simplify right side
   49,978.71x = 2,749,704,921.82
5. Step 5: Solve for x
   x = 2,749,704,921.82/49,978.71
6. Step 6: Final answer
   x = 55,017.52