Finding the Fourth Proportional to 9,411.53, 12,988.10 and 5,634.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.53 : 12,988.10 = 5,634.86 : x
2. Step 2: Convert to fraction form
   9,411.53/12,988.10 = 5,634.86/x
3. Step 3: Cross multiply
   9,411.53x = 12,988.10 × 5,634.86
4. Step 4: Simplify right side
   9,411.53x = 73,186,032.05
5. Step 5: Solve for x
   x = 73,186,032.05/9,411.53
6. Step 6: Final answer
   x = 7,776.21