Finding the Fourth Proportional to 49,943.52, 74,934.72 and 45,861.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,943.52 : 74,934.72 = 45,861.12 : x
2. Step 2: Convert to fraction form
   49,943.52/74,934.72 = 45,861.12/x
3. Step 3: Cross multiply
   49,943.52x = 74,934.72 × 45,861.12
4. Step 4: Simplify right side
   49,943.52x = 3,436,590,186.09
5. Step 5: Solve for x
   x = 3,436,590,186.09/49,943.52
6. Step 6: Final answer
   x = 68,809.53