Finding the Fourth Proportional to 72,903.38, 99,950.53 and 71,574.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,903.38 : 99,950.53 = 71,574.78 : x
2. Step 2: Convert to fraction form
   72,903.38/99,950.53 = 71,574.78/x
3. Step 3: Cross multiply
   72,903.38x = 99,950.53 × 71,574.78
4. Step 4: Simplify right side
   72,903.38x = 7,153,936,837.76
5. Step 5: Solve for x
   x = 7,153,936,837.76/72,903.38
6. Step 6: Final answer
   x = 98,129.01