Finding the Fourth Proportional to 91,582.58, 137,393.52 and 28,401.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91,582.58 : 137,393.52 = 28,401.34 : x
2. Step 2: Convert to fraction form
   91,582.58/137,393.52 = 28,401.34/x
3. Step 3: Cross multiply
   91,582.58x = 137,393.52 × 28,401.34
4. Step 4: Simplify right side
   91,582.58x = 3,902,160,075.32
5. Step 5: Solve for x
   x = 3,902,160,075.32/91,582.58
6. Step 6: Final answer
   x = 42,608.10