Finding the Fourth Proportional to 74,018.78, 102,081.36 and 52,465.89

Step by Step Solution

1. Step 1: Write the proportion equation
   74,018.78 : 102,081.36 = 52,465.89 : x
2. Step 2: Convert to fraction form
   74,018.78/102,081.36 = 52,465.89/x
3. Step 3: Cross multiply
   74,018.78x = 102,081.36 × 52,465.89
4. Step 4: Simplify right side
   74,018.78x = 5,355,789,404.81
5. Step 5: Solve for x
   x = 5,355,789,404.81/74,018.78
6. Step 6: Final answer
   x = 72,357.17