Finding the Fourth Proportional to 90,100.54, 135,019.59 and 43,298.74

Step by Step Solution

1. Step 1: Write the proportion equation
   90,100.54 : 135,019.59 = 43,298.74 : x
2. Step 2: Convert to fraction form
   90,100.54/135,019.59 = 43,298.74/x
3. Step 3: Cross multiply
   90,100.54x = 135,019.59 × 43,298.74
4. Step 4: Simplify right side
   90,100.54x = 5,846,178,122.32
5. Step 5: Solve for x
   x = 5,846,178,122.32/90,100.54
6. Step 6: Final answer
   x = 64,885.05