Finding the Fourth Proportional to 93,756.15, 129,443.91 and 83,667.30

Step by Step Solution

1. Step 1: Write the proportion equation
   93,756.15 : 129,443.91 = 83,667.30 : x
2. Step 2: Convert to fraction form
   93,756.15/129,443.91 = 83,667.30/x
3. Step 3: Cross multiply
   93,756.15x = 129,443.91 × 83,667.30
4. Step 4: Simplify right side
   93,756.15x = 10,830,222,451.14
5. Step 5: Solve for x
   x = 10,830,222,451.14/93,756.15
6. Step 6: Final answer
   x = 115,514.80