Finding the Fourth Proportional to 9,892.56, 14,836.50 and 2,870.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892.56 : 14,836.50 = 2,870.70 : x
2. Step 2: Convert to fraction form
   9,892.56/14,836.50 = 2,870.70/x
3. Step 3: Cross multiply
   9,892.56x = 14,836.50 × 2,870.70
4. Step 4: Simplify right side
   9,892.56x = 42,591,140.55
5. Step 5: Solve for x
   x = 42,591,140.55/9,892.56
6. Step 6: Final answer
   x = 4,305.37