Finding the Fourth Proportional to 30,468.02, 45,499.59 and 30,138.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,468.02 : 45,499.59 = 30,138.15 : x
2. Step 2: Convert to fraction form
   30,468.02/45,499.59 = 30,138.15/x
3. Step 3: Cross multiply
   30,468.02x = 45,499.59 × 30,138.15
4. Step 4: Simplify right side
   30,468.02x = 1,371,273,468.36
5. Step 5: Solve for x
   x = 1,371,273,468.36/30,468.02
6. Step 6: Final answer
   x = 45,006.98