Finding the Fourth Proportional to 139,426.27, 192,407.88 and 75,764.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,426.27 : 192,407.88 = 75,764.08 : x
2. Step 2: Convert to fraction form
   139,426.27/192,407.88 = 75,764.08/x
3. Step 3: Cross multiply
   139,426.27x = 192,407.88 × 75,764.08
4. Step 4: Simplify right side
   139,426.27x = 14,577,606,012.95
5. Step 5: Solve for x
   x = 14,577,606,012.95/139,426.27
6. Step 6: Final answer
   x = 104,554.23