Finding the Fourth Proportional to 42,505.68, 63,687.52 and 30,005.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,505.68 : 63,687.52 = 30,005.20 : x
2. Step 2: Convert to fraction form
   42,505.68/63,687.52 = 30,005.20/x
3. Step 3: Cross multiply
   42,505.68x = 63,687.52 × 30,005.20
4. Step 4: Simplify right side
   42,505.68x = 1,910,956,775.10
5. Step 5: Solve for x
   x = 1,910,956,775.10/42,505.68
6. Step 6: Final answer
   x = 44,957.68