Finding the Fourth Proportional to 13,359,078.50, 18,435,563.96 and 7,247,507.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,359,078.50 : 18,435,563.96 = 7,247,507.00 : x
2. Step 2: Convert to fraction form
   13,359,078.50/18,435,563.96 = 7,247,507.00/x
3. Step 3: Cross multiply
   13,359,078.50x = 18,435,563.96 × 7,247,507.00
4. Step 4: Simplify right side
   13,359,078.50x = 133,611,878,720,632.36
5. Step 5: Solve for x
   x = 133,611,878,720,632.36/13,359,078.50
6. Step 6: Final answer
   x = 10,001,578.98