Finding the Fourth Proportional to 139,943.50, 193,124.37 and 76,284.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,943.50 : 193,124.37 = 76,284.82 : x
2. Step 2: Convert to fraction form
   139,943.50/193,124.37 = 76,284.82/x
3. Step 3: Cross multiply
   139,943.50x = 193,124.37 × 76,284.82
4. Step 4: Simplify right side
   139,943.50x = 14,732,457,803.06
5. Step 5: Solve for x
   x = 14,732,457,803.06/139,943.50
6. Step 6: Final answer
   x = 105,274.33