Finding the Fourth Proportional to 90,342.68, 124,667.67 and 50,054.05

Step by Step Solution

1. Step 1: Write the proportion equation
   90,342.68 : 124,667.67 = 50,054.05 : x
2. Step 2: Convert to fraction form
   90,342.68/124,667.67 = 50,054.05/x
3. Step 3: Cross multiply
   90,342.68x = 124,667.67 × 50,054.05
4. Step 4: Simplify right side
   90,342.68x = 6,240,122,131.10
5. Step 5: Solve for x
   x = 6,240,122,131.10/90,342.68
6. Step 6: Final answer
   x = 69,071.70