Finding the Fourth Proportional to 90,199.98, 134,746.88 and 65,025.18

Step by Step Solution

1. Step 1: Write the proportion equation
   90,199.98 : 134,746.88 = 65,025.18 : x
2. Step 2: Convert to fraction form
   90,199.98/134,746.88 = 65,025.18/x
3. Step 3: Cross multiply
   90,199.98x = 134,746.88 × 65,025.18
4. Step 4: Simplify right side
   90,199.98x = 8,761,939,801.31
5. Step 5: Solve for x
   x = 8,761,939,801.31/90,199.98
6. Step 6: Final answer
   x = 97,139.04