Finding the Fourth Proportional to 22,138,060.28, 30,551,280.18 and 12,844,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,138,060.28 : 30,551,280.18 = 12,844,928.72 : x
2. Step 2: Convert to fraction form
   22,138,060.28/30,551,280.18 = 12,844,928.72/x
3. Step 3: Cross multiply
   22,138,060.28x = 30,551,280.18 × 12,844,928.72
4. Step 4: Simplify right side
   22,138,060.28x = 392,429,016,216,848.81
5. Step 5: Solve for x
   x = 392,429,016,216,848.81/22,138,060.28
6. Step 6: Final answer
   x = 17,726,440.86