Finding the Fourth Proportional to 39,408.94, 59,100.72 and 13,106.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,408.94 : 59,100.72 = 13,106.62 : x
2. Step 2: Convert to fraction form
   39,408.94/59,100.72 = 13,106.62/x
3. Step 3: Cross multiply
   39,408.94x = 59,100.72 × 13,106.62
4. Step 4: Simplify right side
   39,408.94x = 774,610,678.77
5. Step 5: Solve for x
   x = 774,610,678.77/39,408.94
6. Step 6: Final answer
   x = 19,655.71