Finding the Fourth Proportional to 22,572,155.89, 31,151,496.26 and 12,784,341.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572,155.89 : 31,151,496.26 = 12,784,341.28 : x
2. Step 2: Convert to fraction form
   22,572,155.89/31,151,496.26 = 12,784,341.28/x
3. Step 3: Cross multiply
   22,572,155.89x = 31,151,496.26 × 12,784,341.28
4. Step 4: Simplify right side
   22,572,155.89x = 398,251,359,570,483.62
5. Step 5: Solve for x
   x = 398,251,359,570,483.62/22,572,155.89
6. Step 6: Final answer
   x = 17,643,479.05