Finding the Fourth Proportional to 191,377.98, 287,066.64 and 65,031.36

Step by Step Solution

1. Step 1: Write the proportion equation
   191,377.98 : 287,066.64 = 65,031.36 : x
2. Step 2: Convert to fraction form
   191,377.98/287,066.64 = 65,031.36/x
3. Step 3: Cross multiply
   191,377.98x = 287,066.64 × 65,031.36
4. Step 4: Simplify right side
   191,377.98x = 18,668,334,009.83
5. Step 5: Solve for x
   x = 18,668,334,009.83/191,377.98
6. Step 6: Final answer
   x = 97,546.93