Finding the Fourth Proportional to 77,387.58, 116,114.18 and 42,286.23

Step by Step Solution

1. Step 1: Write the proportion equation
   77,387.58 : 116,114.18 = 42,286.23 : x
2. Step 2: Convert to fraction form
   77,387.58/116,114.18 = 42,286.23/x
3. Step 3: Cross multiply
   77,387.58x = 116,114.18 × 42,286.23
4. Step 4: Simplify right side
   77,387.58x = 4,910,030,710.31
5. Step 5: Solve for x
   x = 4,910,030,710.31/77,387.58
6. Step 6: Final answer
   x = 63,447.27