Finding the Fourth Proportional to 10,001.30, 14,969.55 and 7,798.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,001.30 : 14,969.55 = 7,798.10 : x
2. Step 2: Convert to fraction form
   10,001.30/14,969.55 = 7,798.10/x
3. Step 3: Cross multiply
   10,001.30x = 14,969.55 × 7,798.10
4. Step 4: Simplify right side
   10,001.30x = 116,734,047.86
5. Step 5: Solve for x
   x = 116,734,047.86/10,001.30
6. Step 6: Final answer
   x = 11,671.89