Finding the Fourth Proportional to 37,870, 52,240.72 and 28,901.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,870 : 52,240.72 = 28,901.88 : x
2. Step 2: Convert to fraction form
   37,870/52,240.72 = 28,901.88/x
3. Step 3: Cross multiply
   37,870x = 52,240.72 × 28,901.88
4. Step 4: Simplify right side
   37,870x = 1,509,855,020.55
5. Step 5: Solve for x
   x = 1,509,855,020.55/37,870
6. Step 6: Final answer
   x = 39,869.42