Finding the Fourth Proportional to 139,359.69, 192,317.36 and 75,697.47

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359.69 : 192,317.36 = 75,697.47 : x
2. Step 2: Convert to fraction form
   139,359.69/192,317.36 = 75,697.47/x
3. Step 3: Cross multiply
   139,359.69x = 192,317.36 × 75,697.47
4. Step 4: Simplify right side
   139,359.69x = 14,557,937,210.59
5. Step 5: Solve for x
   x = 14,557,937,210.59/139,359.69
6. Step 6: Final answer
   x = 104,463.04