Finding the Fourth Proportional to 92,684.76, 139,061.94 and 42,788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   92,684.76 : 139,061.94 = 42,788.76 : x
2. Step 2: Convert to fraction form
   92,684.76/139,061.94 = 42,788.76/x
3. Step 3: Cross multiply
   92,684.76x = 139,061.94 × 42,788.76
4. Step 4: Simplify right side
   92,684.76x = 5,950,287,975.79
5. Step 5: Solve for x
   x = 5,950,287,975.79/92,684.76
6. Step 6: Final answer
   x = 64,199.21