Finding the Fourth Proportional to 12,997,238.15, 17,937,392.23 and 7,196,019.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,238.15 : 17,937,392.23 = 7,196,019.97 : x
2. Step 2: Convert to fraction form
   12,997,238.15/17,937,392.23 = 7,196,019.97/x
3. Step 3: Cross multiply
   12,997,238.15x = 17,937,392.23 × 7,196,019.97
4. Step 4: Simplify right side
   12,997,238.15x = 129,077,832,633,969.30
5. Step 5: Solve for x
   x = 129,077,832,633,969.30/12,997,238.15
6. Step 6: Final answer
   x = 9,931,173.93