Finding the Fourth Proportional to 7,345.52, 10,136.88 and 3,988.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,345.52 : 10,136.88 = 3,988.16 : x
2. Step 2: Convert to fraction form
   7,345.52/10,136.88 = 3,988.16/x
3. Step 3: Cross multiply
   7,345.52x = 10,136.88 × 3,988.16
4. Step 4: Simplify right side
   7,345.52x = 40,427,499.34
5. Step 5: Solve for x
   x = 40,427,499.34/7,345.52
6. Step 6: Final answer
   x = 5,503.69