Finding the Fourth Proportional to 13,622.48, 20,436.15 and 5,307.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,622.48 : 20,436.15 = 5,307.02 : x
2. Step 2: Convert to fraction form
   13,622.48/20,436.15 = 5,307.02/x
3. Step 3: Cross multiply
   13,622.48x = 20,436.15 × 5,307.02
4. Step 4: Simplify right side
   13,622.48x = 108,455,056.77
5. Step 5: Solve for x
   x = 108,455,056.77/13,622.48
6. Step 6: Final answer
   x = 7,961.48