Finding the Fourth Proportional to 139,513.84, 192,530.48 and 75,853

Step by Step Solution

1. Step 1: Write the proportion equation
   139,513.84 : 192,530.48 = 75,853 : x
2. Step 2: Convert to fraction form
   139,513.84/192,530.48 = 75,853/x
3. Step 3: Cross multiply
   139,513.84x = 192,530.48 × 75,853
4. Step 4: Simplify right side
   139,513.84x = 14,604,014,499.44
5. Step 5: Solve for x
   x = 14,604,014,499.44/139,513.84
6. Step 6: Final answer
   x = 104,677.89