Finding the Fourth Proportional to 92,726.50, 139,113.06 and 42,841.90

Step by Step Solution

1. Step 1: Write the proportion equation
   92,726.50 : 139,113.06 = 42,841.90 : x
2. Step 2: Convert to fraction form
   92,726.50/139,113.06 = 42,841.90/x
3. Step 3: Cross multiply
   92,726.50x = 139,113.06 × 42,841.90
4. Step 4: Simplify right side
   92,726.50x = 5,959,867,805.21
5. Step 5: Solve for x
   x = 5,959,867,805.21/92,726.50
6. Step 6: Final answer
   x = 64,273.62