Finding the Fourth Proportional to 88,849.20, 133,055.10 and 42,047.40

Step by Step Solution

1. Step 1: Write the proportion equation
   88,849.20 : 133,055.10 = 42,047.40 : x
2. Step 2: Convert to fraction form
   88,849.20/133,055.10 = 42,047.40/x
3. Step 3: Cross multiply
   88,849.20x = 133,055.10 × 42,047.40
4. Step 4: Simplify right side
   88,849.20x = 5,594,621,011.74
5. Step 5: Solve for x
   x = 5,594,621,011.74/88,849.20
6. Step 6: Final answer
   x = 62,967.60