Finding the Fourth Proportional to 215,109.95, 296,858.93 and 118,317.89

Step by Step Solution

1. Step 1: Write the proportion equation
   215,109.95 : 296,858.93 = 118,317.89 : x
2. Step 2: Convert to fraction form
   215,109.95/296,858.93 = 118,317.89/x
3. Step 3: Cross multiply
   215,109.95x = 296,858.93 × 118,317.89
4. Step 4: Simplify right side
   215,109.95x = 35,123,722,375.82
5. Step 5: Solve for x
   x = 35,123,722,375.82/215,109.95
6. Step 6: Final answer
   x = 163,282.65