Finding the Fourth Proportional to 13,892.32, 19,172.97 and 7,925.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,892.32 : 19,172.97 = 7,925.47 : x
2. Step 2: Convert to fraction form
   13,892.32/19,172.97 = 7,925.47/x
3. Step 3: Cross multiply
   13,892.32x = 19,172.97 × 7,925.47
4. Step 4: Simplify right side
   13,892.32x = 151,954,798.55
5. Step 5: Solve for x
   x = 151,954,798.55/13,892.32
6. Step 6: Final answer
   x = 10,938.04