Finding the Fourth Proportional to 21,670.56, 32,490.72 and 7,627.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,670.56 : 32,490.72 = 7,627.32 : x
2. Step 2: Convert to fraction form
   21,670.56/32,490.72 = 7,627.32/x
3. Step 3: Cross multiply
   21,670.56x = 32,490.72 × 7,627.32
4. Step 4: Simplify right side
   21,670.56x = 247,817,118.47
5. Step 5: Solve for x
   x = 247,817,118.47/21,670.56
6. Step 6: Final answer
   x = 11,435.66