Finding the Fourth Proportional to 23,420.59, 32,320.67 and 12,810.00

Step by Step Solution

1. Step 1: Write the proportion equation
   23,420.59 : 32,320.67 = 12,810.00 : x
2. Step 2: Convert to fraction form
   23,420.59/32,320.67 = 12,810.00/x
3. Step 3: Cross multiply
   23,420.59x = 32,320.67 × 12,810.00
4. Step 4: Simplify right side
   23,420.59x = 414,027,557.05
5. Step 5: Solve for x
   x = 414,027,557.05/23,420.59
6. Step 6: Final answer
   x = 17,677.93