Finding the Fourth Proportional to 109,517.31, 164,345.07 and 42,955.67

Step by Step Solution

1. Step 1: Write the proportion equation
   109,517.31 : 164,345.07 = 42,955.67 : x
2. Step 2: Convert to fraction form
   109,517.31/164,345.07 = 42,955.67/x
3. Step 3: Cross multiply
   109,517.31x = 164,345.07 × 42,955.67
4. Step 4: Simplify right side
   109,517.31x = 7,059,551,771.32
5. Step 5: Solve for x
   x = 7,059,551,771.32/109,517.31
6. Step 6: Final answer
   x = 64,460.60