Finding the Fourth Proportional to 72,034.78, 99,380.25 and 45,130.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,034.78 : 99,380.25 = 45,130.48 : x
2. Step 2: Convert to fraction form
   72,034.78/99,380.25 = 45,130.48/x
3. Step 3: Cross multiply
   72,034.78x = 99,380.25 × 45,130.48
4. Step 4: Simplify right side
   72,034.78x = 4,485,078,385.02
5. Step 5: Solve for x
   x = 4,485,078,385.02/72,034.78
6. Step 6: Final answer
   x = 62,262.68