Finding the Fourth Proportional to 75,724.38, 113,411.52 and 73,099.98

Step by Step Solution

1. Step 1: Write the proportion equation
   75,724.38 : 113,411.52 = 73,099.98 : x
2. Step 2: Convert to fraction form
   75,724.38/113,411.52 = 73,099.98/x
3. Step 3: Cross multiply
   75,724.38x = 113,411.52 × 73,099.98
4. Step 4: Simplify right side
   75,724.38x = 8,290,379,843.77
5. Step 5: Solve for x
   x = 8,290,379,843.77/75,724.38
6. Step 6: Final answer
   x = 109,480.99