Finding the Fourth Proportional to 137,348.48, 189,525.24 and 76,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,348.48 : 189,525.24 = 76,910.72 : x
2. Step 2: Convert to fraction form
   137,348.48/189,525.24 = 76,910.72/x
3. Step 3: Cross multiply
   137,348.48x = 189,525.24 × 76,910.72
4. Step 4: Simplify right side
   137,348.48x = 14,576,522,666.57
5. Step 5: Solve for x
   x = 14,576,522,666.57/137,348.48
6. Step 6: Final answer
   x = 106,128.02