Finding the Fourth Proportional to 116,780.25, 161,156.94 and 66,479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   116,780.25 : 161,156.94 = 66,479.25 : x
2. Step 2: Convert to fraction form
   116,780.25/161,156.94 = 66,479.25/x
3. Step 3: Cross multiply
   116,780.25x = 161,156.94 × 66,479.25
4. Step 4: Simplify right side
   116,780.25x = 10,713,592,503.50
5. Step 5: Solve for x
   x = 10,713,592,503.50/116,780.25
6. Step 6: Final answer
   x = 91,741.48