Finding the Fourth Proportional to 139,188.86, 208,796.72 and 39,352.31

Step by Step Solution

1. Step 1: Write the proportion equation
   139,188.86 : 208,796.72 = 39,352.31 : x
2. Step 2: Convert to fraction form
   139,188.86/208,796.72 = 39,352.31/x
3. Step 3: Cross multiply
   139,188.86x = 208,796.72 × 39,352.31
4. Step 4: Simplify right side
   139,188.86x = 8,216,632,011.68
5. Step 5: Solve for x
   x = 8,216,632,011.68/139,188.86
6. Step 6: Final answer
   x = 59,032.26