Finding the Fourth Proportional to 22,572,138.32, 31,151,471.95 and 12,784,323.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572,138.32 : 31,151,471.95 = 12,784,323.71 : x
2. Step 2: Convert to fraction form
   22,572,138.32/31,151,471.95 = 12,784,323.71/x
3. Step 3: Cross multiply
   22,572,138.32x = 31,151,471.95 × 12,784,323.71
4. Step 4: Simplify right side
   22,572,138.32x = 398,250,501,334,454.69
5. Step 5: Solve for x
   x = 398,250,501,334,454.69/22,572,138.32
6. Step 6: Final answer
   x = 17,643,454.76