Finding the Fourth Proportional to 78,196.23, 117,294.48 and 19,031.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,196.23 : 117,294.48 = 19,031.94 : x
2. Step 2: Convert to fraction form
   78,196.23/117,294.48 = 19,031.94/x
3. Step 3: Cross multiply
   78,196.23x = 117,294.48 × 19,031.94
4. Step 4: Simplify right side
   78,196.23x = 2,232,341,505.69
5. Step 5: Solve for x
   x = 2,232,341,505.69/78,196.23
6. Step 6: Final answer
   x = 28,547.94