Finding the Fourth Proportional to 49,542.72, 74,248.38 and 42,937.98

Step by Step Solution

1. Step 1: Write the proportion equation
   49,542.72 : 74,248.38 = 42,937.98 : x
2. Step 2: Convert to fraction form
   49,542.72/74,248.38 = 42,937.98/x
3. Step 3: Cross multiply
   49,542.72x = 74,248.38 × 42,937.98
4. Step 4: Simplify right side
   49,542.72x = 3,188,075,455.47
5. Step 5: Solve for x
   x = 3,188,075,455.47/49,542.72
6. Step 6: Final answer
   x = 64,350.03