Finding the Fourth Proportional to 79,128, 109,196.64 and 45,604.80

Step by Step Solution

1. Step 1: Write the proportion equation
   79,128 : 109,196.64 = 45,604.80 : x
2. Step 2: Convert to fraction form
   79,128/109,196.64 = 45,604.80/x
3. Step 3: Cross multiply
   79,128x = 109,196.64 × 45,604.80
4. Step 4: Simplify right side
   79,128x = 4,979,890,927.87
5. Step 5: Solve for x
   x = 4,979,890,927.87/79,128
6. Step 6: Final answer
   x = 62,934.62