Finding the Fourth Proportional to 99,414.56, 137,146.88 and 59,105.44

Step by Step Solution

1. Step 1: Write the proportion equation
   99,414.56 : 137,146.88 = 59,105.44 : x
2. Step 2: Convert to fraction form
   99,414.56/137,146.88 = 59,105.44/x
3. Step 3: Cross multiply
   99,414.56x = 137,146.88 × 59,105.44
4. Step 4: Simplify right side
   99,414.56x = 8,106,126,687.03
5. Step 5: Solve for x
   x = 8,106,126,687.03/99,414.56
6. Step 6: Final answer
   x = 81,538.63