Finding the Fourth Proportional to 139,411, 192,388.08 and 75,748.78

Step by Step Solution

1. Step 1: Write the proportion equation
   139,411 : 192,388.08 = 75,748.78 : x
2. Step 2: Convert to fraction form
   139,411/192,388.08 = 75,748.78/x
3. Step 3: Cross multiply
   139,411x = 192,388.08 × 75,748.78
4. Step 4: Simplify right side
   139,411x = 14,573,162,346.54
5. Step 5: Solve for x
   x = 14,573,162,346.54/139,411
6. Step 6: Final answer
   x = 104,533.81