Finding the Fourth Proportional to 13,590.01, 18,754.76 and 7,928.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,590.01 : 18,754.76 = 7,928.43 : x
2. Step 2: Convert to fraction form
   13,590.01/18,754.76 = 7,928.43/x
3. Step 3: Cross multiply
   13,590.01x = 18,754.76 × 7,928.43
4. Step 4: Simplify right side
   13,590.01x = 148,695,801.83
5. Step 5: Solve for x
   x = 148,695,801.83/13,590.01
6. Step 6: Final answer
   x = 10,941.55