Finding the Fourth Proportional to 76,234.42, 105,201.92 and 42,242.61

Step by Step Solution

1. Step 1: Write the proportion equation
   76,234.42 : 105,201.92 = 42,242.61 : x
2. Step 2: Convert to fraction form
   76,234.42/105,201.92 = 42,242.61/x
3. Step 3: Cross multiply
   76,234.42x = 105,201.92 × 42,242.61
4. Step 4: Simplify right side
   76,234.42x = 4,444,003,677.81
5. Step 5: Solve for x
   x = 4,444,003,677.81/76,234.42
6. Step 6: Final answer
   x = 58,293.93