Finding the Fourth Proportional to 21,947.56, 32,927.72 and 7,907.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,947.56 : 32,927.72 = 7,907.32 : x
2. Step 2: Convert to fraction form
   21,947.56/32,927.72 = 7,907.32/x
3. Step 3: Cross multiply
   21,947.56x = 32,927.72 × 7,907.32
4. Step 4: Simplify right side
   21,947.56x = 260,370,018.91
5. Step 5: Solve for x
   x = 260,370,018.91/21,947.56
6. Step 6: Final answer
   x = 11,863.28