Finding the Fourth Proportional to 78,969.74, 108,978.06 and 43,160.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,969.74 : 108,978.06 = 43,160.01 : x
2. Step 2: Convert to fraction form
   78,969.74/108,978.06 = 43,160.01/x
3. Step 3: Cross multiply
   78,969.74x = 108,978.06 × 43,160.01
4. Step 4: Simplify right side
   78,969.74x = 4,703,494,159.38
5. Step 5: Solve for x
   x = 4,703,494,159.38/78,969.74
6. Step 6: Final answer
   x = 59,560.72