Finding the Fourth Proportional to 139,461.39, 192,457.89 and 75,799.17

Step by Step Solution

1. Step 1: Write the proportion equation
   139,461.39 : 192,457.89 = 75,799.17 : x
2. Step 2: Convert to fraction form
   139,461.39/192,457.89 = 75,799.17/x
3. Step 3: Cross multiply
   139,461.39x = 192,457.89 × 75,799.17
4. Step 4: Simplify right side
   139,461.39x = 14,588,148,321.95
5. Step 5: Solve for x
   x = 14,588,148,321.95/139,461.39
6. Step 6: Final answer
   x = 104,603.49