Finding the Fourth Proportional to 78,346.77, 108,119.10 and 42,536.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,346.77 : 108,119.10 = 42,536.78 : x
2. Step 2: Convert to fraction form
   78,346.77/108,119.10 = 42,536.78/x
3. Step 3: Cross multiply
   78,346.77x = 108,119.10 × 42,536.78
4. Step 4: Simplify right side
   78,346.77x = 4,599,038,370.50
5. Step 5: Solve for x
   x = 4,599,038,370.50/78,346.77
6. Step 6: Final answer
   x = 58,701.06