Finding the Fourth Proportional to 42,080.57, 63,060.70 and 30,899.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,080.57 : 63,060.70 = 30,899.54 : x
2. Step 2: Convert to fraction form
   42,080.57/63,060.70 = 30,899.54/x
3. Step 3: Cross multiply
   42,080.57x = 63,060.70 × 30,899.54
4. Step 4: Simplify right side
   42,080.57x = 1,948,546,622.08
5. Step 5: Solve for x
   x = 1,948,546,622.08/42,080.57
6. Step 6: Final answer
   x = 46,305.14