Finding the Fourth Proportional to 13,269.76, 19,892.32 and 5,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,269.76 : 19,892.32 = 5,870.28 : x
2. Step 2: Convert to fraction form
   13,269.76/19,892.32 = 5,870.28/x
3. Step 3: Cross multiply
   13,269.76x = 19,892.32 × 5,870.28
4. Step 4: Simplify right side
   13,269.76x = 116,773,488.25
5. Step 5: Solve for x
   x = 116,773,488.25/13,269.76
6. Step 6: Final answer
   x = 8,799.97