Finding the Fourth Proportional to 12,993,895.28, 17,931,357.82 and 7,192,552.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,993,895.28 : 17,931,357.82 = 7,192,552.16 : x
2. Step 2: Convert to fraction form
   12,993,895.28/17,931,357.82 = 7,192,552.16/x
3. Step 3: Cross multiply
   12,993,895.28x = 17,931,357.82 × 7,192,552.16
4. Step 4: Simplify right side
   12,993,895.28x = 128,972,226,419,973.89
5. Step 5: Solve for x
   x = 128,972,226,419,973.89/12,993,895.28
6. Step 6: Final answer
   x = 9,925,601.50