Finding the Fourth Proportional to 72,445, 99,974.46 and 42,251.26

Step by Step Solution

1. Step 1: Write the proportion equation
   72,445 : 99,974.46 = 42,251.26 : x
2. Step 2: Convert to fraction form
   72,445/99,974.46 = 42,251.26/x
3. Step 3: Cross multiply
   72,445x = 99,974.46 × 42,251.26
4. Step 4: Simplify right side
   72,445x = 4,224,046,902.82
5. Step 5: Solve for x
   x = 4,224,046,902.82/72,445
6. Step 6: Final answer
   x = 58,306.95