Finding the Fourth Proportional to 92,929.38, 139,377.62 and 42,316.80

Step by Step Solution

1. Step 1: Write the proportion equation
   92,929.38 : 139,377.62 = 42,316.80 : x
2. Step 2: Convert to fraction form
   92,929.38/139,377.62 = 42,316.80/x
3. Step 3: Cross multiply
   92,929.38x = 139,377.62 × 42,316.80
4. Step 4: Simplify right side
   92,929.38x = 5,898,014,870.02
5. Step 5: Solve for x
   x = 5,898,014,870.02/92,929.38
6. Step 6: Final answer
   x = 63,467.71