Finding the Fourth Proportional to 42,081.08, 63,061.46 and 30,900.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,081.08 : 63,061.46 = 30,900.04 : x
2. Step 2: Convert to fraction form
   42,081.08/63,061.46 = 30,900.04/x
3. Step 3: Cross multiply
   42,081.08x = 63,061.46 × 30,900.04
4. Step 4: Simplify right side
   42,081.08x = 1,948,601,636.46
5. Step 5: Solve for x
   x = 1,948,601,636.46/42,081.08
6. Step 6: Final answer
   x = 46,305.88