Finding the Fourth Proportional to 78,061.12, 116,969.05 and 60,335.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,061.12 : 116,969.05 = 60,335.18 : x
2. Step 2: Convert to fraction form
   78,061.12/116,969.05 = 60,335.18/x
3. Step 3: Cross multiply
   78,061.12x = 116,969.05 × 60,335.18
4. Step 4: Simplify right side
   78,061.12x = 7,057,348,933.95
5. Step 5: Solve for x
   x = 7,057,348,933.95/78,061.12
6. Step 6: Final answer
   x = 90,407.99