Finding the Fourth Proportional to 78,987.69, 109,003.01 and 43,177.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,987.69 : 109,003.01 = 43,177.68 : x
2. Step 2: Convert to fraction form
   78,987.69/109,003.01 = 43,177.68/x
3. Step 3: Cross multiply
   78,987.69x = 109,003.01 × 43,177.68
4. Step 4: Simplify right side
   78,987.69x = 4,706,496,868.93
5. Step 5: Solve for x
   x = 4,706,496,868.93/78,987.69
6. Step 6: Final answer
   x = 59,585.19