Finding the Fourth Proportional to 109,371.16, 164,070.42 and 42,802.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,371.16 : 164,070.42 = 42,802.69 : x
2. Step 2: Convert to fraction form
   109,371.16/164,070.42 = 42,802.69/x
3. Step 3: Cross multiply
   109,371.16x = 164,070.42 × 42,802.69
4. Step 4: Simplify right side
   109,371.16x = 7,022,655,325.43
5. Step 5: Solve for x
   x = 7,022,655,325.43/109,371.16
6. Step 6: Final answer
   x = 64,209.39