Finding the Fourth Proportional to 19,759,401.25, 29,608,493.60 and 13,705,901.89

Step by Step Solution

1. Step 1: Write the proportion equation
   19,759,401.25 : 29,608,493.60 = 13,705,901.89 : x
2. Step 2: Convert to fraction form
   19,759,401.25/29,608,493.60 = 13,705,901.89/x
3. Step 3: Cross multiply
   19,759,401.25x = 29,608,493.60 × 13,705,901.89
4. Step 4: Simplify right side
   19,759,401.25x = 405,811,108,323,763.38
5. Step 5: Solve for x
   x = 405,811,108,323,763.38/19,759,401.25
6. Step 6: Final answer
   x = 20,537,621.72