Finding the Fourth Proportional to 186,196.95, 279,363.06 and 91,417.03

Step by Step Solution

1. Step 1: Write the proportion equation
   186,196.95 : 279,363.06 = 91,417.03 : x
2. Step 2: Convert to fraction form
   186,196.95/279,363.06 = 91,417.03/x
3. Step 3: Cross multiply
   186,196.95x = 279,363.06 × 91,417.03
4. Step 4: Simplify right side
   186,196.95x = 25,538,540,538.50
5. Step 5: Solve for x
   x = 25,538,540,538.50/186,196.95
6. Step 6: Final answer
   x = 137,158.75