Finding the Fourth Proportional to 13,359,109.50, 18,435,606.75 and 7,247,538

Step by Step Solution

1. Step 1: Write the proportion equation
   13,359,109.50 : 18,435,606.75 = 7,247,538 : x
2. Step 2: Convert to fraction form
   13,359,109.50/18,435,606.75 = 7,247,538/x
3. Step 3: Cross multiply
   13,359,109.50x = 18,435,606.75 × 7,247,538
4. Step 4: Simplify right side
   13,359,109.50x = 133,612,760,473,681.50
5. Step 5: Solve for x
   x = 133,612,760,473,681.50/13,359,109.50
6. Step 6: Final answer
   x = 10,001,621.78