Finding the Fourth Proportional to 13,359,080.50, 18,435,566.72 and 7,247,509

Step by Step Solution

1. Step 1: Write the proportion equation
   13,359,080.50 : 18,435,566.72 = 7,247,509 : x
2. Step 2: Convert to fraction form
   13,359,080.50/18,435,566.72 = 7,247,509/x
3. Step 3: Cross multiply
   13,359,080.50x = 18,435,566.72 × 7,247,509
4. Step 4: Simplify right side
   13,359,080.50x = 133,611,935,723,300.47
5. Step 5: Solve for x
   x = 133,611,935,723,300.47/13,359,080.50
6. Step 6: Final answer
   x = 10,001,581.75