Finding the Fourth Proportional to 13,848.59, 19,112.15 and 7,880.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,848.59 : 19,112.15 = 7,880.51 : x
2. Step 2: Convert to fraction form
   13,848.59/19,112.15 = 7,880.51/x
3. Step 3: Cross multiply
   13,848.59x = 19,112.15 × 7,880.51
4. Step 4: Simplify right side
   13,848.59x = 150,613,449.79
5. Step 5: Solve for x
   x = 150,613,449.79/13,848.59
6. Step 6: Final answer
   x = 10,875.72