Finding the Fourth Proportional to 78,346.55, 108,118.24 and 42,536.57

Step by Step Solution

1. Step 1: Write the proportion equation
   78,346.55 : 108,118.24 = 42,536.57 : x
2. Step 2: Convert to fraction form
   78,346.55/108,118.24 = 42,536.57/x
3. Step 3: Cross multiply
   78,346.55x = 108,118.24 × 42,536.57
4. Step 4: Simplify right side
   78,346.55x = 4,598,979,002.06
5. Step 5: Solve for x
   x = 4,598,979,002.06/78,346.55
6. Step 6: Final answer
   x = 58,700.46