Finding the Fourth Proportional to 42,196.06, 63,294.36 and 12,611.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,196.06 : 63,294.36 = 12,611.08 : x
2. Step 2: Convert to fraction form
   42,196.06/63,294.36 = 12,611.08/x
3. Step 3: Cross multiply
   42,196.06x = 63,294.36 × 12,611.08
4. Step 4: Simplify right side
   42,196.06x = 798,210,237.51
5. Step 5: Solve for x
   x = 798,210,237.51/42,196.06
6. Step 6: Final answer
   x = 18,916.70