Finding the Fourth Proportional to 191,566.29, 287,054.01 and 121,297.98

Step by Step Solution

1. Step 1: Write the proportion equation
   191,566.29 : 287,054.01 = 121,297.98 : x
2. Step 2: Convert to fraction form
   191,566.29/287,054.01 = 121,297.98/x
3. Step 3: Cross multiply
   191,566.29x = 287,054.01 × 121,297.98
4. Step 4: Simplify right side
   191,566.29x = 34,819,071,563.90
5. Step 5: Solve for x
   x = 34,819,071,563.90/191,566.29
6. Step 6: Final answer
   x = 181,759.91