Finding the Fourth Proportional to 28,530.16, 42,799.86 and 8,804.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,530.16 : 42,799.86 = 8,804.10 : x
2. Step 2: Convert to fraction form
   28,530.16/42,799.86 = 8,804.10/x
3. Step 3: Cross multiply
   28,530.16x = 42,799.86 × 8,804.10
4. Step 4: Simplify right side
   28,530.16x = 376,814,247.43
5. Step 5: Solve for x
   x = 376,814,247.43/28,530.16
6. Step 6: Final answer
   x = 13,207.58