Finding the Fourth Proportional to 191,633.82, 287,188.65 and 97,943.10

Step by Step Solution

1. Step 1: Write the proportion equation
   191,633.82 : 287,188.65 = 97,943.10 : x
2. Step 2: Convert to fraction form
   191,633.82/287,188.65 = 97,943.10/x
3. Step 3: Cross multiply
   191,633.82x = 287,188.65 × 97,943.10
4. Step 4: Simplify right side
   191,633.82x = 28,128,146,665.82
5. Step 5: Solve for x
   x = 28,128,146,665.82/191,633.82
6. Step 6: Final answer
   x = 146,780.70