Finding the Fourth Proportional to 74,288.96, 102,493.83 and 42,435.30

Step by Step Solution

1. Step 1: Write the proportion equation
   74,288.96 : 102,493.83 = 42,435.30 : x
2. Step 2: Convert to fraction form
   74,288.96/102,493.83 = 42,435.30/x
3. Step 3: Cross multiply
   74,288.96x = 102,493.83 × 42,435.30
4. Step 4: Simplify right side
   74,288.96x = 4,349,356,212.02
5. Step 5: Solve for x
   x = 4,349,356,212.02/74,288.96
6. Step 6: Final answer
   x = 58,546.47