Finding the Fourth Proportional to 52,148.81, 71,977.82 and 30,940.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,148.81 : 71,977.82 = 30,940.38 : x
2. Step 2: Convert to fraction form
   52,148.81/71,977.82 = 30,940.38/x
3. Step 3: Cross multiply
   52,148.81x = 71,977.82 × 30,940.38
4. Step 4: Simplify right side
   52,148.81x = 2,227,020,947.67
5. Step 5: Solve for x
   x = 2,227,020,947.67/52,148.81
6. Step 6: Final answer
   x = 42,705.11