Finding the Fourth Proportional to 12,997,764.72, 17,937,475.68 and 7,196,546.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,764.72 : 17,937,475.68 = 7,196,546.16 : x
2. Step 2: Convert to fraction form
   12,997,764.72/17,937,475.68 = 7,196,546.16/x
3. Step 3: Cross multiply
   12,997,764.72x = 17,937,475.68 × 7,196,546.16
4. Step 4: Simplify right side
   12,997,764.72x = 129,087,871,724,997.39
5. Step 5: Solve for x
   x = 129,087,871,724,997.39/12,997,764.72
6. Step 6: Final answer
   x = 9,931,543.96