Finding the Fourth Proportional to 9,913.14, 13,680.52 and 5,437.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,913.14 : 13,680.52 = 5,437.05 : x
2. Step 2: Convert to fraction form
   9,913.14/13,680.52 = 5,437.05/x
3. Step 3: Cross multiply
   9,913.14x = 13,680.52 × 5,437.05
4. Step 4: Simplify right side
   9,913.14x = 74,381,671.27
5. Step 5: Solve for x
   x = 74,381,671.27/9,913.14
6. Step 6: Final answer
   x = 7,503.34