Finding the Fourth Proportional to 67,831.77, 93,654.21 and 42,376.89

Step by Step Solution

1. Step 1: Write the proportion equation
   67,831.77 : 93,654.21 = 42,376.89 : x
2. Step 2: Convert to fraction form
   67,831.77/93,654.21 = 42,376.89/x
3. Step 3: Cross multiply
   67,831.77x = 93,654.21 × 42,376.89
4. Step 4: Simplify right side
   67,831.77x = 3,968,774,155.21
5. Step 5: Solve for x
   x = 3,968,774,155.21/67,831.77
6. Step 6: Final answer
   x = 58,509.08