Finding the Fourth Proportional to 39,393.03, 59,076.72 and 13,090.71

Step by Step Solution

1. Step 1: Write the proportion equation
   39,393.03 : 59,076.72 = 13,090.71 : x
2. Step 2: Convert to fraction form
   39,393.03/59,076.72 = 13,090.71/x
3. Step 3: Cross multiply
   39,393.03x = 59,076.72 × 13,090.71
4. Step 4: Simplify right side
   39,393.03x = 773,356,209.27
5. Step 5: Solve for x
   x = 773,356,209.27/39,393.03
6. Step 6: Final answer
   x = 19,631.80