Finding the Fourth Proportional to 12,997,588.56, 17,937,232.72 and 7,196,370.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,588.56 : 17,937,232.72 = 7,196,370.31 : x
2. Step 2: Convert to fraction form
   12,997,588.56/17,937,232.72 = 7,196,370.31/x
3. Step 3: Cross multiply
   12,997,588.56x = 17,937,232.72 × 7,196,370.31
4. Step 4: Simplify right side
   12,997,588.56x = 129,082,968,864,100.52
5. Step 5: Solve for x
   x = 129,082,968,864,100.52/12,997,588.56
6. Step 6: Final answer
   x = 9,931,301.35