Finding the Fourth Proportional to 9,898.86, 14,826.68 and 4,959.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,898.86 : 14,826.68 = 4,959.88 : x
2. Step 2: Convert to fraction form
   9,898.86/14,826.68 = 4,959.88/x
3. Step 3: Cross multiply
   9,898.86x = 14,826.68 × 4,959.88
4. Step 4: Simplify right side
   9,898.86x = 73,538,553.60
5. Step 5: Solve for x
   x = 73,538,553.60/9,898.86
6. Step 6: Final answer
   x = 7,428.99