Finding the Fourth Proportional to 107,152.20, 147,699.27 and 84,456

Step by Step Solution

1. Step 1: Write the proportion equation
   107,152.20 : 147,699.27 = 84,456 : x
2. Step 2: Convert to fraction form
   107,152.20/147,699.27 = 84,456/x
3. Step 3: Cross multiply
   107,152.20x = 147,699.27 × 84,456
4. Step 4: Simplify right side
   107,152.20x = 12,474,089,547.12
5. Step 5: Solve for x
   x = 12,474,089,547.12/107,152.20
6. Step 6: Final answer
   x = 116,414.68