Finding the Fourth Proportional to 85,307.63, 117,724.53 and 47,581.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85,307.63 : 117,724.53 = 47,581.88 : x
2. Step 2: Convert to fraction form
   85,307.63/117,724.53 = 47,581.88/x
3. Step 3: Cross multiply
   85,307.63x = 117,724.53 × 47,581.88
4. Step 4: Simplify right side
   85,307.63x = 5,601,553,870.89
5. Step 5: Solve for x
   x = 5,601,553,870.89/85,307.63
6. Step 6: Final answer
   x = 65,662.99