Finding the Fourth Proportional to 114,987.99, 158,547.67 and 78,706.89

Step by Step Solution

1. Step 1: Write the proportion equation
   114,987.99 : 158,547.67 = 78,706.89 : x
2. Step 2: Convert to fraction form
   114,987.99/158,547.67 = 78,706.89/x
3. Step 3: Cross multiply
   114,987.99x = 158,547.67 × 78,706.89
4. Step 4: Simplify right side
   114,987.99x = 12,478,794,022.45
5. Step 5: Solve for x
   x = 12,478,794,022.45/114,987.99
6. Step 6: Final answer
   x = 108,522.59