Finding the Fourth Proportional to 87,656.48, 131,601.40 and 59,288.72

Step by Step Solution

1. Step 1: Write the proportion equation
   87,656.48 : 131,601.40 = 59,288.72 : x
2. Step 2: Convert to fraction form
   87,656.48/131,601.40 = 59,288.72/x
3. Step 3: Cross multiply
   87,656.48x = 131,601.40 × 59,288.72
4. Step 4: Simplify right side
   87,656.48x = 7,802,478,556.21
5. Step 5: Solve for x
   x = 7,802,478,556.21/87,656.48
6. Step 6: Final answer
   x = 89,012.00