Finding the Fourth Proportional to 18,665,170.72, 27,997,624.86 and 5,201,998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,665,170.72 : 27,997,624.86 = 5,201,998.72 : x
2. Step 2: Convert to fraction form
   18,665,170.72/27,997,624.86 = 5,201,998.72/x
3. Step 3: Cross multiply
   18,665,170.72x = 27,997,624.86 × 5,201,998.72
4. Step 4: Simplify right side
   18,665,170.72x = 145,643,608,684,760.16
5. Step 5: Solve for x
   x = 145,643,608,684,760.16/18,665,170.72
6. Step 6: Final answer
   x = 7,802,961.51