Finding the Fourth Proportional to 117,900.90, 176,740.18 and 58,680.59

Step by Step Solution

1. Step 1: Write the proportion equation
   117,900.90 : 176,740.18 = 58,680.59 : x
2. Step 2: Convert to fraction form
   117,900.90/176,740.18 = 58,680.59/x
3. Step 3: Cross multiply
   117,900.90x = 176,740.18 × 58,680.59
4. Step 4: Simplify right side
   117,900.90x = 10,371,217,008.70
5. Step 5: Solve for x
   x = 10,371,217,008.70/117,900.90
6. Step 6: Final answer
   x = 87,965.55