Finding the Fourth Proportional to 49,437, 74,164.82 and 19,857.15

Step by Step Solution

1. Step 1: Write the proportion equation
   49,437 : 74,164.82 = 19,857.15 : x
2. Step 2: Convert to fraction form
   49,437/74,164.82 = 19,857.15/x
3. Step 3: Cross multiply
   49,437x = 74,164.82 × 19,857.15
4. Step 4: Simplify right side
   49,437x = 1,472,701,856.18
5. Step 5: Solve for x
   x = 1,472,701,856.18/49,437
6. Step 6: Final answer
   x = 29,789.47