Finding the Fourth Proportional to 74,410.83, 102,688.05 and 40,419.98

Step by Step Solution

1. Step 1: Write the proportion equation
   74,410.83 : 102,688.05 = 40,419.98 : x
2. Step 2: Convert to fraction form
   74,410.83/102,688.05 = 40,419.98/x
3. Step 3: Cross multiply
   74,410.83x = 102,688.05 × 40,419.98
4. Step 4: Simplify right side
   74,410.83x = 4,150,648,950.45
5. Step 5: Solve for x
   x = 4,150,648,950.45/74,410.83
6. Step 6: Final answer
   x = 55,780.17