Finding the Fourth Proportional to 22,572,154.89, 31,151,494.88 and 12,784,340.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572,154.89 : 31,151,494.88 = 12,784,340.28 : x
2. Step 2: Convert to fraction form
   22,572,154.89/31,151,494.88 = 12,784,340.28/x
3. Step 3: Cross multiply
   22,572,154.89x = 31,151,494.88 × 12,784,340.28
4. Step 4: Simplify right side
   22,572,154.89x = 398,251,310,619,828.56
5. Step 5: Solve for x
   x = 398,251,310,619,828.56/22,572,154.89
6. Step 6: Final answer
   x = 17,643,477.66