Finding the Fourth Proportional to 129,314.34, 193,827.69 and 54,412.38

Step by Step Solution

1. Step 1: Write the proportion equation
   129,314.34 : 193,827.69 = 54,412.38 : x
2. Step 2: Convert to fraction form
   129,314.34/193,827.69 = 54,412.38/x
3. Step 3: Cross multiply
   129,314.34x = 193,827.69 × 54,412.38
4. Step 4: Simplify right side
   129,314.34x = 10,546,625,922.80
5. Step 5: Solve for x
   x = 10,546,625,922.80/129,314.34
6. Step 6: Final answer
   x = 81,558.05