Finding the Fourth Proportional to 17,322,726.51, 23,906,472.35 and 9,980,426.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,322,726.51 : 23,906,472.35 = 9,980,426.21 : x
2. Step 2: Convert to fraction form
   17,322,726.51/23,906,472.35 = 9,980,426.21/x
3. Step 3: Cross multiply
   17,322,726.51x = 23,906,472.35 × 9,980,426.21
4. Step 4: Simplify right side
   17,322,726.51x = 238,596,783,061,145.78
5. Step 5: Solve for x
   x = 238,596,783,061,145.78/17,322,726.51
6. Step 6: Final answer
   x = 13,773,627.55