Finding the Fourth Proportional to 139,461.30, 192,458.10 and 75,799.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,461.30 : 192,458.10 = 75,799.10 : x
2. Step 2: Convert to fraction form
   139,461.30/192,458.10 = 75,799.10/x
3. Step 3: Cross multiply
   139,461.30x = 192,458.10 × 75,799.10
4. Step 4: Simplify right side
   139,461.30x = 14,588,150,767.71
5. Step 5: Solve for x
   x = 14,588,150,767.71/139,461.30
6. Step 6: Final answer
   x = 104,603.58