Finding the Fourth Proportional to 11,904.94, 16,425.72 and 7,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,904.94 : 16,425.72 = 7,187.50 : x
2. Step 2: Convert to fraction form
   11,904.94/16,425.72 = 7,187.50/x
3. Step 3: Cross multiply
   11,904.94x = 16,425.72 × 7,187.50
4. Step 4: Simplify right side
   11,904.94x = 118,059,862.50
5. Step 5: Solve for x
   x = 118,059,862.50/11,904.94
6. Step 6: Final answer
   x = 9,916.88