Finding the Fourth Proportional to 79,898.28, 119,808.54 and 42,476.28

Step by Step Solution

1. Step 1: Write the proportion equation
   79,898.28 : 119,808.54 = 42,476.28 : x
2. Step 2: Convert to fraction form
   79,898.28/119,808.54 = 42,476.28/x
3. Step 3: Cross multiply
   79,898.28x = 119,808.54 × 42,476.28
4. Step 4: Simplify right side
   79,898.28x = 5,089,021,091.43
5. Step 5: Solve for x
   x = 5,089,021,091.43/79,898.28
6. Step 6: Final answer
   x = 63,693.75