Finding the Fourth Proportional to 7,503.10, 11,261.72 and 3,807.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,503.10 : 11,261.72 = 3,807.98 : x
2. Step 2: Convert to fraction form
   7,503.10/11,261.72 = 3,807.98/x
3. Step 3: Cross multiply
   7,503.10x = 11,261.72 × 3,807.98
4. Step 4: Simplify right side
   7,503.10x = 42,884,441.90
5. Step 5: Solve for x
   x = 42,884,441.90/7,503.10
6. Step 6: Final answer
   x = 5,715.56