Finding the Fourth Proportional to 42,487.08, 63,752.04 and 30,086.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,487.08 : 63,752.04 = 30,086.79 : x
2. Step 2: Convert to fraction form
   42,487.08/63,752.04 = 30,086.79/x
3. Step 3: Cross multiply
   42,487.08x = 63,752.04 × 30,086.79
4. Step 4: Simplify right side
   42,487.08x = 1,918,094,239.55
5. Step 5: Solve for x
   x = 1,918,094,239.55/42,487.08
6. Step 6: Final answer
   x = 45,145.35