Finding the Fourth Proportional to 87,528.79, 131,300.07 and 43,131.34

Step by Step Solution

1. Step 1: Write the proportion equation
   87,528.79 : 131,300.07 = 43,131.34 : x
2. Step 2: Convert to fraction form
   87,528.79/131,300.07 = 43,131.34/x
3. Step 3: Cross multiply
   87,528.79x = 131,300.07 × 43,131.34
4. Step 4: Simplify right side
   87,528.79x = 5,663,147,961.19
5. Step 5: Solve for x
   x = 5,663,147,961.19/87,528.79
6. Step 6: Final answer
   x = 64,700.40