Finding the Fourth Proportional to 73,291.58, 109,915.38 and 31,171.34

Step by Step Solution

1. Step 1: Write the proportion equation
   73,291.58 : 109,915.38 = 31,171.34 : x
2. Step 2: Convert to fraction form
   73,291.58/109,915.38 = 31,171.34/x
3. Step 3: Cross multiply
   73,291.58x = 109,915.38 × 31,171.34
4. Step 4: Simplify right side
   73,291.58x = 3,426,209,681.21
5. Step 5: Solve for x
   x = 3,426,209,681.21/73,291.58
6. Step 6: Final answer
   x = 46,747.66