Finding the Fourth Proportional to 114,980.05, 158,672.23 and 64,679.05

Step by Step Solution

1. Step 1: Write the proportion equation
   114,980.05 : 158,672.23 = 64,679.05 : x
2. Step 2: Convert to fraction form
   114,980.05/158,672.23 = 64,679.05/x
3. Step 3: Cross multiply
   114,980.05x = 158,672.23 × 64,679.05
4. Step 4: Simplify right side
   114,980.05x = 10,262,769,097.78
5. Step 5: Solve for x
   x = 10,262,769,097.78/114,980.05
6. Step 6: Final answer
   x = 89,256.95