Finding the Fourth Proportional to 42,837.66, 64,144.71 and 34,471.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,837.66 : 64,144.71 = 34,471.98 : x
2. Step 2: Convert to fraction form
   42,837.66/64,144.71 = 34,471.98/x
3. Step 3: Cross multiply
   42,837.66x = 64,144.71 × 34,471.98
4. Step 4: Simplify right side
   42,837.66x = 2,211,195,160.23
5. Step 5: Solve for x
   x = 2,211,195,160.23/42,837.66
6. Step 6: Final answer
   x = 51,618.02