Finding the Fourth Proportional to 72,325.99, 99,819.33 and 42,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,325.99 : 99,819.33 = 42,111.82 : x
2. Step 2: Convert to fraction form
   72,325.99/99,819.33 = 42,111.82/x
3. Step 3: Cross multiply
   72,325.99x = 99,819.33 × 42,111.82
4. Step 4: Simplify right side
   72,325.99x = 4,203,573,657.48
5. Step 5: Solve for x
   x = 4,203,573,657.48/72,325.99
6. Step 6: Final answer
   x = 58,119.82