Finding the Fourth Proportional to 72,779.76, 109,196.34 and 30,670.44

Step by Step Solution

1. Step 1: Write the proportion equation
   72,779.76 : 109,196.34 = 30,670.44 : x
2. Step 2: Convert to fraction form
   72,779.76/109,196.34 = 30,670.44/x
3. Step 3: Cross multiply
   72,779.76x = 109,196.34 × 30,670.44
4. Step 4: Simplify right side
   72,779.76x = 3,349,099,794.19
5. Step 5: Solve for x
   x = 3,349,099,794.19/72,779.76
6. Step 6: Final answer
   x = 46,016.91