Finding the Fourth Proportional to 91,843.83, 137,752.79 and 28,649.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,843.83 : 137,752.79 = 28,649.25 : x
2. Step 2: Convert to fraction form
   91,843.83/137,752.79 = 28,649.25/x
3. Step 3: Cross multiply
   91,843.83x = 137,752.79 × 28,649.25
4. Step 4: Simplify right side
   91,843.83x = 3,946,513,975.66
5. Step 5: Solve for x
   x = 3,946,513,975.66/91,843.83
6. Step 6: Final answer
   x = 42,969.83