Finding the Fourth Proportional to 13,300,892.96, 18,355,221.27 and 7,189,321.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300,892.96 : 18,355,221.27 = 7,189,321.46 : x
2. Step 2: Convert to fraction form
   13,300,892.96/18,355,221.27 = 7,189,321.46/x
3. Step 3: Cross multiply
   13,300,892.96x = 18,355,221.27 × 7,189,321.46
4. Step 4: Simplify right side
   13,300,892.96x = 131,961,586,087,683.34
5. Step 5: Solve for x
   x = 131,961,586,087,683.34/13,300,892.96
6. Step 6: Final answer
   x = 9,921,257.66