Finding the Fourth Proportional to 79,007.36, 109,057.60 and 45,486.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,007.36 : 109,057.60 = 45,486.72 : x
2. Step 2: Convert to fraction form
   79,007.36/109,057.60 = 45,486.72/x
3. Step 3: Cross multiply
   79,007.36x = 109,057.60 × 45,486.72
4. Step 4: Simplify right side
   79,007.36x = 4,960,672,515.07
5. Step 5: Solve for x
   x = 4,960,672,515.07/79,007.36
6. Step 6: Final answer
   x = 62,787.47