Finding the Fourth Proportional to 13,857.32, 19,123.12 and 7,888.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.32 : 19,123.12 = 7,888.98 : x
2. Step 2: Convert to fraction form
   13,857.32/19,123.12 = 7,888.98/x
3. Step 3: Cross multiply
   13,857.32x = 19,123.12 × 7,888.98
4. Step 4: Simplify right side
   13,857.32x = 150,861,911.22
5. Step 5: Solve for x
   x = 150,861,911.22/13,857.32
6. Step 6: Final answer
   x = 10,886.80