Finding the Fourth Proportional to 28,077.12, 42,115.95 and 7,300.62

Step by Step Solution

1. Step 1: Write the proportion equation
   28,077.12 : 42,115.95 = 7,300.62 : x
2. Step 2: Convert to fraction form
   28,077.12/42,115.95 = 7,300.62/x
3. Step 3: Cross multiply
   28,077.12x = 42,115.95 × 7,300.62
4. Step 4: Simplify right side
   28,077.12x = 307,472,546.89
5. Step 5: Solve for x
   x = 307,472,546.89/28,077.12
6. Step 6: Final answer
   x = 10,951.00