Finding the Fourth Proportional to 23,140.72, 34,753.46 and 21,188.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,140.72 : 34,753.46 = 21,188.82 : x
2. Step 2: Convert to fraction form
   23,140.72/34,753.46 = 21,188.82/x
3. Step 3: Cross multiply
   23,140.72x = 34,753.46 × 21,188.82
4. Step 4: Simplify right side
   23,140.72x = 736,384,808.32
5. Step 5: Solve for x
   x = 736,384,808.32/23,140.72
6. Step 6: Final answer
   x = 31,822.04