Finding the Fourth Proportional to 21,671,920.50, 32,464,564.47 and 13,031,289.93

Step by Step Solution

1. Step 1: Write the proportion equation
   21,671,920.50 : 32,464,564.47 = 13,031,289.93 : x
2. Step 2: Convert to fraction form
   21,671,920.50/32,464,564.47 = 13,031,289.93/x
3. Step 3: Cross multiply
   21,671,920.50x = 32,464,564.47 × 13,031,289.93
4. Step 4: Simplify right side
   21,671,920.50x = 423,055,152,059,746.75
5. Step 5: Solve for x
   x = 423,055,152,059,746.75/21,671,920.50
6. Step 6: Final answer
   x = 19,520,888.89