Finding the Fourth Proportional to 139,941.02, 193,112.88 and 76,277.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,941.02 : 193,112.88 = 76,277.42 : x
2. Step 2: Convert to fraction form
   139,941.02/193,112.88 = 76,277.42/x
3. Step 3: Cross multiply
   139,941.02x = 193,112.88 × 76,277.42
4. Step 4: Simplify right side
   139,941.02x = 14,730,152,255.17
5. Step 5: Solve for x
   x = 14,730,152,255.17/139,941.02
6. Step 6: Final answer
   x = 105,259.72