Finding the Fourth Proportional to 90,607.16, 135,300.57 and 74,000.15

Step by Step Solution

1. Step 1: Write the proportion equation
   90,607.16 : 135,300.57 = 74,000.15 : x
2. Step 2: Convert to fraction form
   90,607.16/135,300.57 = 74,000.15/x
3. Step 3: Cross multiply
   90,607.16x = 135,300.57 × 74,000.15
4. Step 4: Simplify right side
   90,607.16x = 10,012,262,475.09
5. Step 5: Solve for x
   x = 10,012,262,475.09/90,607.16
6. Step 6: Final answer
   x = 110,501.89