Finding the Fourth Proportional to 13,354.04, 18,427.83 and 7,385.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,354.04 : 18,427.83 = 7,385.31 : x
2. Step 2: Convert to fraction form
   13,354.04/18,427.83 = 7,385.31/x
3. Step 3: Cross multiply
   13,354.04x = 18,427.83 × 7,385.31
4. Step 4: Simplify right side
   13,354.04x = 136,095,237.18
5. Step 5: Solve for x
   x = 136,095,237.18/13,354.04
6. Step 6: Final answer
   x = 10,191.32