Finding the Fourth Proportional to 42,897,627.28, 64,325,516.79 and 15,222,173.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897,627.28 : 64,325,516.79 = 15,222,173.81 : x
2. Step 2: Convert to fraction form
   42,897,627.28/64,325,516.79 = 15,222,173.81/x
3. Step 3: Cross multiply
   42,897,627.28x = 64,325,516.79 × 15,222,173.81
4. Step 4: Simplify right side
   42,897,627.28x = 979,174,197,156,267
5. Step 5: Solve for x
   x = 979,174,197,156,267/42,897,627.28
6. Step 6: Final answer
   x = 22,825,835.82