Finding the Fourth Proportional to 8,971.86, 13,438.56 and 7,298.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,971.86 : 13,438.56 = 7,298.04 : x
2. Step 2: Convert to fraction form
   8,971.86/13,438.56 = 7,298.04/x
3. Step 3: Cross multiply
   8,971.86x = 13,438.56 × 7,298.04
4. Step 4: Simplify right side
   8,971.86x = 98,075,081.23
5. Step 5: Solve for x
   x = 98,075,081.23/8,971.86
6. Step 6: Final answer
   x = 10,931.42