Finding the Fourth Proportional to 137,218.52, 189,336.62 and 79,066.19

Step by Step Solution

1. Step 1: Write the proportion equation
   137,218.52 : 189,336.62 = 79,066.19 : x
2. Step 2: Convert to fraction form
   137,218.52/189,336.62 = 79,066.19/x
3. Step 3: Cross multiply
   137,218.52x = 189,336.62 × 79,066.19
4. Step 4: Simplify right side
   137,218.52x = 14,970,123,828.86
5. Step 5: Solve for x
   x = 14,970,123,828.86/137,218.52
6. Step 6: Final answer
   x = 109,096.97