Finding the Fourth Proportional to 42,853.66, 64,168.71 and 34,487.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,853.66 : 64,168.71 = 34,487.98 : x
2. Step 2: Convert to fraction form
   42,853.66/64,168.71 = 34,487.98/x
3. Step 3: Cross multiply
   42,853.66x = 64,168.71 × 34,487.98
4. Step 4: Simplify right side
   42,853.66x = 2,213,049,187.11
5. Step 5: Solve for x
   x = 2,213,049,187.11/42,853.66
6. Step 6: Final answer
   x = 51,642.01