Finding the Fourth Proportional to 43,032.60, 64,550.72 and 13,451.00

Step by Step Solution

1. Step 1: Write the proportion equation
   43,032.60 : 64,550.72 = 13,451.00 : x
2. Step 2: Convert to fraction form
   43,032.60/64,550.72 = 13,451.00/x
3. Step 3: Cross multiply
   43,032.60x = 64,550.72 × 13,451.00
4. Step 4: Simplify right side
   43,032.60x = 868,271,445.59
5. Step 5: Solve for x
   x = 868,271,445.59/43,032.60
6. Step 6: Final answer
   x = 20,177.06