Finding the Fourth Proportional to 80,696.59, 120,892.91 and 47,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,696.59 : 120,892.91 = 47,317.50 : x
2. Step 2: Convert to fraction form
   80,696.59/120,892.91 = 47,317.50/x
3. Step 3: Cross multiply
   80,696.59x = 120,892.91 × 47,317.50
4. Step 4: Simplify right side
   80,696.59x = 5,720,350,032.34
5. Step 5: Solve for x
   x = 5,720,350,032.34/80,696.59
6. Step 6: Final answer
   x = 70,887.14