Finding the Fourth Proportional to 137,099.82, 189,154.71 and 76,662.30

Step by Step Solution

1. Step 1: Write the proportion equation
   137,099.82 : 189,154.71 = 76,662.30 : x
2. Step 2: Convert to fraction form
   137,099.82/189,154.71 = 76,662.30/x
3. Step 3: Cross multiply
   137,099.82x = 189,154.71 × 76,662.30
4. Step 4: Simplify right side
   137,099.82x = 14,501,035,124.43
5. Step 5: Solve for x
   x = 14,501,035,124.43/137,099.82
6. Step 6: Final answer
   x = 105,769.91