Finding the Fourth Proportional to 53,012.42, 73,158.72 and 30,358.74

Step by Step Solution

1. Step 1: Write the proportion equation
   53,012.42 : 73,158.72 = 30,358.74 : x
2. Step 2: Convert to fraction form
   53,012.42/73,158.72 = 30,358.74/x
3. Step 3: Cross multiply
   53,012.42x = 73,158.72 × 30,358.74
4. Step 4: Simplify right side
   53,012.42x = 2,221,006,559.21
5. Step 5: Solve for x
   x = 2,221,006,559.21/53,012.42
6. Step 6: Final answer
   x = 41,895.97