Finding the Fourth Proportional to 54,685.08, 75,468.96 and 30,488.76

Step by Step Solution

1. Step 1: Write the proportion equation
   54,685.08 : 75,468.96 = 30,488.76 : x
2. Step 2: Convert to fraction form
   54,685.08/75,468.96 = 30,488.76/x
3. Step 3: Cross multiply
   54,685.08x = 75,468.96 × 30,488.76
4. Step 4: Simplify right side
   54,685.08x = 2,300,955,008.89
5. Step 5: Solve for x
   x = 2,300,955,008.89/54,685.08
6. Step 6: Final answer
   x = 42,076.47