Finding the Fourth Proportional to 69,022.41, 103,664.83 and 42,909.63

Step by Step Solution

1. Step 1: Write the proportion equation
   69,022.41 : 103,664.83 = 42,909.63 : x
2. Step 2: Convert to fraction form
   69,022.41/103,664.83 = 42,909.63/x
3. Step 3: Cross multiply
   69,022.41x = 103,664.83 × 42,909.63
4. Step 4: Simplify right side
   69,022.41x = 4,448,219,499.31
5. Step 5: Solve for x
   x = 4,448,219,499.31/69,022.41
6. Step 6: Final answer
   x = 64,446.02