Finding the Fourth Proportional to 191,698.18, 287,329.30 and 116,653.10

Step by Step Solution

1. Step 1: Write the proportion equation
   191,698.18 : 287,329.30 = 116,653.10 : x
2. Step 2: Convert to fraction form
   191,698.18/287,329.30 = 116,653.10/x
3. Step 3: Cross multiply
   191,698.18x = 287,329.30 × 116,653.10
4. Step 4: Simplify right side
   191,698.18x = 33,517,851,837.55
5. Step 5: Solve for x
   x = 33,517,851,837.55/191,698.18
6. Step 6: Final answer
   x = 174,847.00