Finding the Fourth Proportional to 137,382.89, 189,697.95 and 91,487.34

Step by Step Solution

1. Step 1: Write the proportion equation
   137,382.89 : 189,697.95 = 91,487.34 : x
2. Step 2: Convert to fraction form
   137,382.89/189,697.95 = 91,487.34/x
3. Step 3: Cross multiply
   137,382.89x = 189,697.95 × 91,487.34
4. Step 4: Simplify right side
   137,382.89x = 17,354,960,848.95
5. Step 5: Solve for x
   x = 17,354,960,848.95/137,382.89
6. Step 6: Final answer
   x = 126,325.49