Finding the Fourth Proportional to 9,931.84, 13,706.20 and 5,624.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.84 : 13,706.20 = 5,624.59 : x
2. Step 2: Convert to fraction form
   9,931.84/13,706.20 = 5,624.59/x
3. Step 3: Cross multiply
   9,931.84x = 13,706.20 × 5,624.59
4. Step 4: Simplify right side
   9,931.84x = 77,091,658.80
5. Step 5: Solve for x
   x = 77,091,658.80/9,931.84
6. Step 6: Final answer
   x = 7,762.08