Finding the Fourth Proportional to 118,607.98, 163,683.10 and 64,893.00

Step by Step Solution

1. Step 1: Write the proportion equation
   118,607.98 : 163,683.10 = 64,893.00 : x
2. Step 2: Convert to fraction form
   118,607.98/163,683.10 = 64,893.00/x
3. Step 3: Cross multiply
   118,607.98x = 163,683.10 × 64,893.00
4. Step 4: Simplify right side
   118,607.98x = 10,621,886,427.65
5. Step 5: Solve for x
   x = 10,621,886,427.65/118,607.98
6. Step 6: Final answer
   x = 89,554.57