Finding the Fourth Proportional to 78,725.67, 108,640.59 and 42,914.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,725.67 : 108,640.59 = 42,914.93 : x
2. Step 2: Convert to fraction form
   78,725.67/108,640.59 = 42,914.93/x
3. Step 3: Cross multiply
   78,725.67x = 108,640.59 × 42,914.93
4. Step 4: Simplify right side
   78,725.67x = 4,662,302,771.81
5. Step 5: Solve for x
   x = 4,662,302,771.81/78,725.67
6. Step 6: Final answer
   x = 59,222.14