Finding the Fourth Proportional to 118,269.84, 163,211.72 and 64,554.69

Step by Step Solution

1. Step 1: Write the proportion equation
   118,269.84 : 163,211.72 = 64,554.69 : x
2. Step 2: Convert to fraction form
   118,269.84/163,211.72 = 64,554.69/x
3. Step 3: Cross multiply
   118,269.84x = 163,211.72 × 64,554.69
4. Step 4: Simplify right side
   118,269.84x = 10,536,081,666.19
5. Step 5: Solve for x
   x = 10,536,081,666.19/118,269.84
6. Step 6: Final answer
   x = 89,085.11