Finding the Fourth Proportional to 42,679,419.27, 64,019,296.98 and 10,331,269.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,679,419.27 : 64,019,296.98 = 10,331,269.86 : x
2. Step 2: Convert to fraction form
   42,679,419.27/64,019,296.98 = 10,331,269.86/x
3. Step 3: Cross multiply
   42,679,419.27x = 64,019,296.98 × 10,331,269.86
4. Step 4: Simplify right side
   42,679,419.27x = 661,400,633,347,863
5. Step 5: Solve for x
   x = 661,400,633,347,863/42,679,419.27
6. Step 6: Final answer
   x = 15,496,945.48