Finding the Fourth Proportional to 13,915.58, 19,204.82 and 7,948.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,915.58 : 19,204.82 = 7,948.14 : x
2. Step 2: Convert to fraction form
   13,915.58/19,204.82 = 7,948.14/x
3. Step 3: Cross multiply
   13,915.58x = 19,204.82 × 7,948.14
4. Step 4: Simplify right side
   13,915.58x = 152,642,598.03
5. Step 5: Solve for x
   x = 152,642,598.03/13,915.58
6. Step 6: Final answer
   x = 10,969.19