Finding the Fourth Proportional to 13,871.59, 19,141.47 and 7,903.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,871.59 : 19,141.47 = 7,903.10 : x
2. Step 2: Convert to fraction form
   13,871.59/19,141.47 = 7,903.10/x
3. Step 3: Cross multiply
   13,871.59x = 19,141.47 × 7,903.10
4. Step 4: Simplify right side
   13,871.59x = 151,276,999.41
5. Step 5: Solve for x
   x = 151,276,999.41/13,871.59
6. Step 6: Final answer
   x = 10,905.53