Finding the Fourth Proportional to 345,904, 477,348.16 and 186,928

Step by Step Solution

1. Step 1: Write the proportion equation
   345,904 : 477,348.16 = 186,928 : x
2. Step 2: Convert to fraction form
   345,904/477,348.16 = 186,928/x
3. Step 3: Cross multiply
   345,904x = 477,348.16 × 186,928
4. Step 4: Simplify right side
   345,904x = 89,229,736,852.48
5. Step 5: Solve for x
   x = 89,229,736,852.48/345,904
6. Step 6: Final answer
   x = 257,960.99