Finding the Fourth Proportional to 37,871, 52,242.10 and 28,902.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,871 : 52,242.10 = 28,902.88 : x
2. Step 2: Convert to fraction form
   37,871/52,242.10 = 28,902.88/x
3. Step 3: Cross multiply
   37,871x = 52,242.10 × 28,902.88
4. Step 4: Simplify right side
   37,871x = 1,509,947,147.25
5. Step 5: Solve for x
   x = 1,509,947,147.25/37,871
6. Step 6: Final answer
   x = 39,870.80