Finding the Fourth Proportional to 43,345.86, 65,017.83 and 19,972.29

Step by Step Solution

1. Step 1: Write the proportion equation
   43,345.86 : 65,017.83 = 19,972.29 : x
2. Step 2: Convert to fraction form
   43,345.86/65,017.83 = 19,972.29/x
3. Step 3: Cross multiply
   43,345.86x = 65,017.83 × 19,972.29
4. Step 4: Simplify right side
   43,345.86x = 1,298,554,955.93
5. Step 5: Solve for x
   x = 1,298,554,955.93/43,345.86
6. Step 6: Final answer
   x = 29,957.99