Finding the Fourth Proportional to 8,925.31, 12,316.62 and 4,946.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,925.31 : 12,316.62 = 4,946.80 : x
2. Step 2: Convert to fraction form
   8,925.31/12,316.62 = 4,946.80/x
3. Step 3: Cross multiply
   8,925.31x = 12,316.62 × 4,946.80
4. Step 4: Simplify right side
   8,925.31x = 60,927,769.50
5. Step 5: Solve for x
   x = 60,927,769.50/8,925.31
6. Step 6: Final answer
   x = 6,826.40