Finding the Fourth Proportional to 48,528.72, 66,925.32 and 30,603.60

Step by Step Solution

1. Step 1: Write the proportion equation
   48,528.72 : 66,925.32 = 30,603.60 : x
2. Step 2: Convert to fraction form
   48,528.72/66,925.32 = 30,603.60/x
3. Step 3: Cross multiply
   48,528.72x = 66,925.32 × 30,603.60
4. Step 4: Simplify right side
   48,528.72x = 2,048,155,723.15
5. Step 5: Solve for x
   x = 2,048,155,723.15/48,528.72
6. Step 6: Final answer
   x = 42,205.02