Finding the Fourth Proportional to 22,216,065.71, 30,664,688.28 and 12,925,820.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,216,065.71 : 30,664,688.28 = 12,925,820.93 : x
2. Step 2: Convert to fraction form
   22,216,065.71/30,664,688.28 = 12,925,820.93/x
3. Step 3: Cross multiply
   22,216,065.71x = 30,664,688.28 × 12,925,820.93
4. Step 4: Simplify right side
   22,216,065.71x = 396,366,269,581,549.69
5. Step 5: Solve for x
   x = 396,366,269,581,549.69/22,216,065.71
6. Step 6: Final answer
   x = 17,841,424.97