Finding the Fourth Proportional to 39,607.04, 59,419.37 and 13,311

Step by Step Solution

1. Step 1: Write the proportion equation
   39,607.04 : 59,419.37 = 13,311 : x
2. Step 2: Convert to fraction form
   39,607.04/59,419.37 = 13,311/x
3. Step 3: Cross multiply
   39,607.04x = 59,419.37 × 13,311
4. Step 4: Simplify right side
   39,607.04x = 790,931,267.35
5. Step 5: Solve for x
   x = 790,931,267.35/39,607.04
6. Step 6: Final answer
   x = 19,969.46