Finding the Fourth Proportional to 13,111.98, 19,666.37 and 3,751.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.98 : 19,666.37 = 3,751.84 : x
2. Step 2: Convert to fraction form
   13,111.98/19,666.37 = 3,751.84/x
3. Step 3: Cross multiply
   13,111.98x = 19,666.37 × 3,751.84
4. Step 4: Simplify right side
   13,111.98x = 73,785,152.34
5. Step 5: Solve for x
   x = 73,785,152.34/13,111.98
6. Step 6: Final answer
   x = 5,627.31