Finding the Fourth Proportional to 42,877.62, 59,147.01 and 30,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,877.62 : 59,147.01 = 30,280.50 : x
2. Step 2: Convert to fraction form
   42,877.62/59,147.01 = 30,280.50/x
3. Step 3: Cross multiply
   42,877.62x = 59,147.01 × 30,280.50
4. Step 4: Simplify right side
   42,877.62x = 1,791,001,036.31
5. Step 5: Solve for x
   x = 1,791,001,036.31/42,877.62
6. Step 6: Final answer
   x = 41,770.07