Finding the Fourth Proportional to 139,333.47, 208,856.98 and 55,059.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,333.47 : 208,856.98 = 55,059.24 : x
2. Step 2: Convert to fraction form
   139,333.47/208,856.98 = 55,059.24/x
3. Step 3: Cross multiply
   139,333.47x = 208,856.98 × 55,059.24
4. Step 4: Simplify right side
   139,333.47x = 11,499,507,439.53
5. Step 5: Solve for x
   x = 11,499,507,439.53/139,333.47
6. Step 6: Final answer
   x = 82,532.27