Finding the Fourth Proportional to 139,200.30, 192,100.14 and 75,538.14

Step by Step Solution

1. Step 1: Write the proportion equation
   139,200.30 : 192,100.14 = 75,538.14 : x
2. Step 2: Convert to fraction form
   139,200.30/192,100.14 = 75,538.14/x
3. Step 3: Cross multiply
   139,200.30x = 192,100.14 × 75,538.14
4. Step 4: Simplify right side
   139,200.30x = 14,510,887,269.34
5. Step 5: Solve for x
   x = 14,510,887,269.34/139,200.30
6. Step 6: Final answer
   x = 104,244.66