Finding the Fourth Proportional to 88,164.99, 121,667.31 and 47,878.47

Step by Step Solution

1. Step 1: Write the proportion equation
   88,164.99 : 121,667.31 = 47,878.47 : x
2. Step 2: Convert to fraction form
   88,164.99/121,667.31 = 47,878.47/x
3. Step 3: Cross multiply
   88,164.99x = 121,667.31 × 47,878.47
4. Step 4: Simplify right side
   88,164.99x = 5,825,244,651.82
5. Step 5: Solve for x
   x = 5,825,244,651.82/88,164.99
6. Step 6: Final answer
   x = 66,072.08