Finding the Fourth Proportional to 90,288.79, 135,410.10 and 37,018.33

Step by Step Solution

1. Step 1: Write the proportion equation
   90,288.79 : 135,410.10 = 37,018.33 : x
2. Step 2: Convert to fraction form
   90,288.79/135,410.10 = 37,018.33/x
3. Step 3: Cross multiply
   90,288.79x = 135,410.10 × 37,018.33
4. Step 4: Simplify right side
   90,288.79x = 5,012,655,767.13
5. Step 5: Solve for x
   x = 5,012,655,767.13/90,288.79
6. Step 6: Final answer
   x = 55,518.03