Finding the Fourth Proportional to 151,432.81, 208,989.45 and 83,463.62

Step by Step Solution

1. Step 1: Write the proportion equation
   151,432.81 : 208,989.45 = 83,463.62 : x
2. Step 2: Convert to fraction form
   151,432.81/208,989.45 = 83,463.62/x
3. Step 3: Cross multiply
   151,432.81x = 208,989.45 × 83,463.62
4. Step 4: Simplify right side
   151,432.81x = 17,443,014,993.86
5. Step 5: Solve for x
   x = 17,443,014,993.86/151,432.81
6. Step 6: Final answer
   x = 115,186.50