Finding the Fourth Proportional to 9,428.00, 13,015.35 and 7,298.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428.00 : 13,015.35 = 7,298.78 : x
2. Step 2: Convert to fraction form
   9,428.00/13,015.35 = 7,298.78/x
3. Step 3: Cross multiply
   9,428.00x = 13,015.35 × 7,298.78
4. Step 4: Simplify right side
   9,428.00x = 94,996,111.20
5. Step 5: Solve for x
   x = 94,996,111.20/9,428.00
6. Step 6: Final answer
   x = 10,075.96