Finding the Fourth Proportional to 78,140.24, 107,834.04 and 42,330.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,140.24 : 107,834.04 = 42,330.22 : x
2. Step 2: Convert to fraction form
   78,140.24/107,834.04 = 42,330.22/x
3. Step 3: Cross multiply
   78,140.24x = 107,834.04 × 42,330.22
4. Step 4: Simplify right side
   78,140.24x = 4,564,638,636.69
5. Step 5: Solve for x
   x = 4,564,638,636.69/78,140.24
6. Step 6: Final answer
   x = 58,415.98