Finding the Fourth Proportional to 72,910.08, 109,376.91 and 30,796.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,910.08 : 109,376.91 = 30,796.50 : x
2. Step 2: Convert to fraction form
   72,910.08/109,376.91 = 30,796.50/x
3. Step 3: Cross multiply
   72,910.08x = 109,376.91 × 30,796.50
4. Step 4: Simplify right side
   72,910.08x = 3,368,426,008.82
5. Step 5: Solve for x
   x = 3,368,426,008.82/72,910.08
6. Step 6: Final answer
   x = 46,199.73