Finding the Fourth Proportional to 153,662.57, 212,056.98 and 84,759.98

Step by Step Solution

1. Step 1: Write the proportion equation
   153,662.57 : 212,056.98 = 84,759.98 : x
2. Step 2: Convert to fraction form
   153,662.57/212,056.98 = 84,759.98/x
3. Step 3: Cross multiply
   153,662.57x = 212,056.98 × 84,759.98
4. Step 4: Simplify right side
   153,662.57x = 17,973,945,383.66
5. Step 5: Solve for x
   x = 17,973,945,383.66/153,662.57
6. Step 6: Final answer
   x = 116,970.22