Finding the Fourth Proportional to 109,475.51, 164,093.30 and 42,842.40

Step by Step Solution

1. Step 1: Write the proportion equation
   109,475.51 : 164,093.30 = 42,842.40 : x
2. Step 2: Convert to fraction form
   109,475.51/164,093.30 = 42,842.40/x
3. Step 3: Cross multiply
   109,475.51x = 164,093.30 × 42,842.40
4. Step 4: Simplify right side
   109,475.51x = 7,030,150,581.71
5. Step 5: Solve for x
   x = 7,030,150,581.71/109,475.51
6. Step 6: Final answer
   x = 64,216.65