Finding the Fourth Proportional to 109,376.37, 164,078.24 and 42,807.87

Step by Step Solution

1. Step 1: Write the proportion equation
   109,376.37 : 164,078.24 = 42,807.87 : x
2. Step 2: Convert to fraction form
   109,376.37/164,078.24 = 42,807.87/x
3. Step 3: Cross multiply
   109,376.37x = 164,078.24 × 42,807.87
4. Step 4: Simplify right side
   109,376.37x = 7,023,839,753.71
5. Step 5: Solve for x
   x = 7,023,839,753.71/109,376.37
6. Step 6: Final answer
   x = 64,217.16