Finding the Fourth Proportional to 69,819.47, 103,939.58 and 69,404.35

Step by Step Solution

1. Step 1: Write the proportion equation
   69,819.47 : 103,939.58 = 69,404.35 : x
2. Step 2: Convert to fraction form
   69,819.47/103,939.58 = 69,404.35/x
3. Step 3: Cross multiply
   69,819.47x = 103,939.58 × 69,404.35
4. Step 4: Simplify right side
   69,819.47x = 7,213,858,122.45
5. Step 5: Solve for x
   x = 7,213,858,122.45/69,819.47
6. Step 6: Final answer
   x = 103,321.58