Finding the Fourth Proportional to 28,366.64, 42,546.72 and 7,591.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,366.64 : 42,546.72 = 7,591.76 : x
2. Step 2: Convert to fraction form
   28,366.64/42,546.72 = 7,591.76/x
3. Step 3: Cross multiply
   28,366.64x = 42,546.72 × 7,591.76
4. Step 4: Simplify right side
   28,366.64x = 323,004,487.03
5. Step 5: Solve for x
   x = 323,004,487.03/28,366.64
6. Step 6: Final answer
   x = 11,386.77