Finding the Fourth Proportional to 13,012.02, 19,423.89 and 11,435.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012.02 : 19,423.89 = 11,435.58 : x
2. Step 2: Convert to fraction form
   13,012.02/19,423.89 = 11,435.58/x
3. Step 3: Cross multiply
   13,012.02x = 19,423.89 × 11,435.58
4. Step 4: Simplify right side
   13,012.02x = 222,123,448.01
5. Step 5: Solve for x
   x = 222,123,448.01/13,012.02
6. Step 6: Final answer
   x = 17,070.64