Finding the Fourth Proportional to 139,474.32, 209,093.88 and 60,529.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,474.32 : 209,093.88 = 60,529.08 : x
2. Step 2: Convert to fraction form
   139,474.32/209,093.88 = 60,529.08/x
3. Step 3: Cross multiply
   139,474.32x = 209,093.88 × 60,529.08
4. Step 4: Simplify right side
   139,474.32x = 12,656,260,190.03
5. Step 5: Solve for x
   x = 12,656,260,190.03/139,474.32
6. Step 6: Final answer
   x = 90,742.58