Finding the Fourth Proportional to 191,417.06, 287,103.72 and 51,186.62

Step by Step Solution

1. Step 1: Write the proportion equation
   191,417.06 : 287,103.72 = 51,186.62 : x
2. Step 2: Convert to fraction form
   191,417.06/287,103.72 = 51,186.62/x
3. Step 3: Cross multiply
   191,417.06x = 287,103.72 × 51,186.62
4. Step 4: Simplify right side
   191,417.06x = 14,695,869,016.23
5. Step 5: Solve for x
   x = 14,695,869,016.23/191,417.06
6. Step 6: Final answer
   x = 76,774.08