Finding the Fourth Proportional to 72,488.63, 100,034.49 and 42,294.71

Step by Step Solution

1. Step 1: Write the proportion equation
   72,488.63 : 100,034.49 = 42,294.71 : x
2. Step 2: Convert to fraction form
   72,488.63/100,034.49 = 42,294.71/x
3. Step 3: Cross multiply
   72,488.63x = 100,034.49 × 42,294.71
4. Step 4: Simplify right side
   72,488.63x = 4,230,929,744.55
5. Step 5: Solve for x
   x = 4,230,929,744.55/72,488.63
6. Step 6: Final answer
   x = 58,366.81