Finding the Fourth Proportional to 139,561.56, 209,292.18 and 48,352.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,561.56 : 209,292.18 = 48,352.32 : x
2. Step 2: Convert to fraction form
   139,561.56/209,292.18 = 48,352.32/x
3. Step 3: Cross multiply
   139,561.56x = 209,292.18 × 48,352.32
4. Step 4: Simplify right side
   139,561.56x = 10,119,762,460.86
5. Step 5: Solve for x
   x = 10,119,762,460.86/139,561.56
6. Step 6: Final answer
   x = 72,511.10