Finding the Fourth Proportional to 78,465.84, 108,281.76 and 42,654.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,465.84 : 108,281.76 = 42,654.96 : x
2. Step 2: Convert to fraction form
   78,465.84/108,281.76 = 42,654.96/x
3. Step 3: Cross multiply
   78,465.84x = 108,281.76 × 42,654.96
4. Step 4: Simplify right side
   78,465.84x = 4,618,754,141.53
5. Step 5: Solve for x
   x = 4,618,754,141.53/78,465.84
6. Step 6: Final answer
   x = 58,863.25