Finding the Fourth Proportional to 79,112.23, 109,173.96 and 42,812.84

Step by Step Solution

1. Step 1: Write the proportion equation
   79,112.23 : 109,173.96 = 42,812.84 : x
2. Step 2: Convert to fraction form
   79,112.23/109,173.96 = 42,812.84/x
3. Step 3: Cross multiply
   79,112.23x = 109,173.96 × 42,812.84
4. Step 4: Simplify right side
   79,112.23x = 4,674,046,521.71
5. Step 5: Solve for x
   x = 4,674,046,521.71/79,112.23
6. Step 6: Final answer
   x = 59,081.21