Finding the Fourth Proportional to 139,544.49, 209,247.69 and 59,570.00

Step by Step Solution

1. Step 1: Write the proportion equation
   139,544.49 : 209,247.69 = 59,570.00 : x
2. Step 2: Convert to fraction form
   139,544.49/209,247.69 = 59,570.00/x
3. Step 3: Cross multiply
   139,544.49x = 209,247.69 × 59,570.00
4. Step 4: Simplify right side
   139,544.49x = 12,464,883,847.06
5. Step 5: Solve for x
   x = 12,464,883,847.06/139,544.49
6. Step 6: Final answer
   x = 89,325.52