Finding the Fourth Proportional to 31,696,087.33, 47,536,478.88 and 13,242,061.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,696,087.33 : 47,536,478.88 = 13,242,061.09 : x
2. Step 2: Convert to fraction form
   31,696,087.33/47,536,478.88 = 13,242,061.09/x
3. Step 3: Cross multiply
   31,696,087.33x = 47,536,478.88 × 13,242,061.09
4. Step 4: Simplify right side
   31,696,087.33x = 629,480,957,332,454.75
5. Step 5: Solve for x
   x = 629,480,957,332,454.75/31,696,087.33
6. Step 6: Final answer
   x = 19,859,894.72