Finding the Fourth Proportional to 78,461.34, 108,275.88 and 42,649.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,461.34 : 108,275.88 = 42,649.22 : x
2. Step 2: Convert to fraction form
   78,461.34/108,275.88 = 42,649.22/x
3. Step 3: Cross multiply
   78,461.34x = 108,275.88 × 42,649.22
4. Step 4: Simplify right side
   78,461.34x = 4,617,881,285.43
5. Step 5: Solve for x
   x = 4,617,881,285.43/78,461.34
6. Step 6: Final answer
   x = 58,855.50