Finding the Fourth Proportional to 137,300.16, 189,376.50 and 126,006.12

Step by Step Solution

1. Step 1: Write the proportion equation
   137,300.16 : 189,376.50 = 126,006.12 : x
2. Step 2: Convert to fraction form
   137,300.16/189,376.50 = 126,006.12/x
3. Step 3: Cross multiply
   137,300.16x = 189,376.50 × 126,006.12
4. Step 4: Simplify right side
   137,300.16x = 23,862,597,984.18
5. Step 5: Solve for x
   x = 23,862,597,984.18/137,300.16
6. Step 6: Final answer
   x = 173,798.76