Finding the Fourth Proportional to 345,876, 477,308.88 and 186,900

Step by Step Solution

1. Step 1: Write the proportion equation
   345,876 : 477,308.88 = 186,900 : x
2. Step 2: Convert to fraction form
   345,876/477,308.88 = 186,900/x
3. Step 3: Cross multiply
   345,876x = 477,308.88 × 186,900
4. Step 4: Simplify right side
   345,876x = 89,209,029,672
5. Step 5: Solve for x
   x = 89,209,029,672/345,876
6. Step 6: Final answer
   x = 257,922