Finding the Fourth Proportional to 85,611.04, 118,136.82 and 47,878

Step by Step Solution

1. Step 1: Write the proportion equation
   85,611.04 : 118,136.82 = 47,878 : x
2. Step 2: Convert to fraction form
   85,611.04/118,136.82 = 47,878/x
3. Step 3: Cross multiply
   85,611.04x = 118,136.82 × 47,878
4. Step 4: Simplify right side
   85,611.04x = 5,656,154,667.96
5. Step 5: Solve for x
   x = 5,656,154,667.96/85,611.04
6. Step 6: Final answer
   x = 66,068.05