Finding the Fourth Proportional to 11,624.78, 16,045.71 and 7,900.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,624.78 : 16,045.71 = 7,900.94 : x
2. Step 2: Convert to fraction form
   11,624.78/16,045.71 = 7,900.94/x
3. Step 3: Cross multiply
   11,624.78x = 16,045.71 × 7,900.94
4. Step 4: Simplify right side
   11,624.78x = 126,776,191.97
5. Step 5: Solve for x
   x = 126,776,191.97/11,624.78
6. Step 6: Final answer
   x = 10,905.69