Finding the Fourth Proportional to 108,867.27, 163,311.17 and 42,312.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,867.27 : 163,311.17 = 42,312.50 : x
2. Step 2: Convert to fraction form
   108,867.27/163,311.17 = 42,312.50/x
3. Step 3: Cross multiply
   108,867.27x = 163,311.17 × 42,312.50
4. Step 4: Simplify right side
   108,867.27x = 6,910,102,852.51
5. Step 5: Solve for x
   x = 6,910,102,852.51/108,867.27
6. Step 6: Final answer
   x = 63,472.73