Finding the Fourth Proportional to 100,925.82, 139,256.55 and 58,481.82

Step by Step Solution

1. Step 1: Write the proportion equation
   100,925.82 : 139,256.55 = 58,481.82 : x
2. Step 2: Convert to fraction form
   100,925.82/139,256.55 = 58,481.82/x
3. Step 3: Cross multiply
   100,925.82x = 139,256.55 × 58,481.82
4. Step 4: Simplify right side
   100,925.82x = 8,143,976,490.92
5. Step 5: Solve for x
   x = 8,143,976,490.92/100,925.82
6. Step 6: Final answer
   x = 80,692.70