Finding the Fourth Proportional to 23,061.55, 34,591.72 and 6,420.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,061.55 : 34,591.72 = 6,420.91 : x
2. Step 2: Convert to fraction form
   23,061.55/34,591.72 = 6,420.91/x
3. Step 3: Cross multiply
   23,061.55x = 34,591.72 × 6,420.91
4. Step 4: Simplify right side
   23,061.55x = 222,110,115.80
5. Step 5: Solve for x
   x = 222,110,115.80/23,061.55
6. Step 6: Final answer
   x = 9,631.19