Finding the Fourth Proportional to 42,853.86, 64,305.09 and 23,131.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,853.86 : 64,305.09 = 23,131.98 : x
2. Step 2: Convert to fraction form
   42,853.86/64,305.09 = 23,131.98/x
3. Step 3: Cross multiply
   42,853.86x = 64,305.09 × 23,131.98
4. Step 4: Simplify right side
   42,853.86x = 1,487,504,055.78
5. Step 5: Solve for x
   x = 1,487,504,055.78/42,853.86
6. Step 6: Final answer
   x = 34,711.09