Finding the Fourth Proportional to 61,002.42, 84,171.38 and 38,328.28

Step by Step Solution

1. Step 1: Write the proportion equation
   61,002.42 : 84,171.38 = 38,328.28 : x
2. Step 2: Convert to fraction form
   61,002.42/84,171.38 = 38,328.28/x
3. Step 3: Cross multiply
   61,002.42x = 84,171.38 × 38,328.28
4. Step 4: Simplify right side
   61,002.42x = 3,226,143,818.56
5. Step 5: Solve for x
   x = 3,226,143,818.56/61,002.42
6. Step 6: Final answer
   x = 52,885.50