Finding the Fourth Proportional to 153,456.42, 211,775.61 and 84,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   153,456.42 : 211,775.61 = 84,548.72 : x
2. Step 2: Convert to fraction form
   153,456.42/211,775.61 = 84,548.72/x
3. Step 3: Cross multiply
   153,456.42x = 211,775.61 × 84,548.72
4. Step 4: Simplify right side
   153,456.42x = 17,905,355,693.84
5. Step 5: Solve for x
   x = 17,905,355,693.84/153,456.42
6. Step 6: Final answer
   x = 116,680.39