Finding the Fourth Proportional to 164,665,819.07, 247,074,156.57 and 71,321,340.83

Step by Step Solution

1. Step 1: Write the proportion equation
   164,665,819.07 : 247,074,156.57 = 71,321,340.83 : x
2. Step 2: Convert to fraction form
   164,665,819.07/247,074,156.57 = 71,321,340.83/x
3. Step 3: Cross multiply
   164,665,819.07x = 247,074,156.57 × 71,321,340.83
4. Step 4: Simplify right side
   164,665,819.07x = 17,621,660,129,778,384
5. Step 5: Solve for x
   x = 17,621,660,129,778,384/164,665,819.07
6. Step 6: Final answer
   x = 107,014,681.19