Finding the Fourth Proportional to 137,273, 189,439.94 and 76,842.12

Step by Step Solution

1. Step 1: Write the proportion equation
   137,273 : 189,439.94 = 76,842.12 : x
2. Step 2: Convert to fraction form
   137,273/189,439.94 = 76,842.12/x
3. Step 3: Cross multiply
   137,273x = 189,439.94 × 76,842.12
4. Step 4: Simplify right side
   137,273x = 14,556,966,602.27
5. Step 5: Solve for x
   x = 14,556,966,602.27/137,273
6. Step 6: Final answer
   x = 106,043.92