Finding the Fourth Proportional to 87,219.24, 130,910.52 and 42,877.80

Step by Step Solution

1. Step 1: Write the proportion equation
   87,219.24 : 130,910.52 = 42,877.80 : x
2. Step 2: Convert to fraction form
   87,219.24/130,910.52 = 42,877.80/x
3. Step 3: Cross multiply
   87,219.24x = 130,910.52 × 42,877.80
4. Step 4: Simplify right side
   87,219.24x = 5,613,155,094.46
5. Step 5: Solve for x
   x = 5,613,155,094.46/87,219.24
6. Step 6: Final answer
   x = 64,356.84