Finding the Fourth Proportional to 91,597.11, 137,415.37 and 28,415.96

Step by Step Solution

1. Step 1: Write the proportion equation
   91,597.11 : 137,415.37 = 28,415.96 : x
2. Step 2: Convert to fraction form
   91,597.11/137,415.37 = 28,415.96/x
3. Step 3: Cross multiply
   91,597.11x = 137,415.37 × 28,415.96
4. Step 4: Simplify right side
   91,597.11x = 3,904,789,657.31
5. Step 5: Solve for x
   x = 3,904,789,657.31/91,597.11
6. Step 6: Final answer
   x = 42,630.05