Finding the Fourth Proportional to 12,680,429.76, 19,028,109.60 and 4,707,852.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680,429.76 : 19,028,109.60 = 4,707,852.48 : x
2. Step 2: Convert to fraction form
   12,680,429.76/19,028,109.60 = 4,707,852.48/x
3. Step 3: Cross multiply
   12,680,429.76x = 19,028,109.60 × 4,707,852.48
4. Step 4: Simplify right side
   12,680,429.76x = 89,581,532,970,071.83
5. Step 5: Solve for x
   x = 89,581,532,970,071.83/12,680,429.76
6. Step 6: Final answer
   x = 7,064,550.23