Finding the Fourth Proportional to 91,398.03, 137,057.83 and 31,432.54

Step by Step Solution

1. Step 1: Write the proportion equation
   91,398.03 : 137,057.83 = 31,432.54 : x
2. Step 2: Convert to fraction form
   91,398.03/137,057.83 = 31,432.54/x
3. Step 3: Cross multiply
   91,398.03x = 137,057.83 × 31,432.54
4. Step 4: Simplify right side
   91,398.03x = 4,308,075,302.56
5. Step 5: Solve for x
   x = 4,308,075,302.56/91,398.03
6. Step 6: Final answer
   x = 47,135.32