Finding the Fourth Proportional to 13,978.17, 19,289.94 and 7,604.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,978.17 : 19,289.94 = 7,604.76 : x
2. Step 2: Convert to fraction form
   13,978.17/19,289.94 = 7,604.76/x
3. Step 3: Cross multiply
   13,978.17x = 19,289.94 × 7,604.76
4. Step 4: Simplify right side
   13,978.17x = 146,695,364.11
5. Step 5: Solve for x
   x = 146,695,364.11/13,978.17
6. Step 6: Final answer
   x = 10,494.60