Finding the Fourth Proportional to 85,499.01, 128,248.25 and 60,093.93

Step by Step Solution

1. Step 1: Write the proportion equation
   85,499.01 : 128,248.25 = 60,093.93 : x
2. Step 2: Convert to fraction form
   85,499.01/128,248.25 = 60,093.93/x
3. Step 3: Cross multiply
   85,499.01x = 128,248.25 × 60,093.93
4. Step 4: Simplify right side
   85,499.01x = 7,706,940,416.41
5. Step 5: Solve for x
   x = 7,706,940,416.41/85,499.01
6. Step 6: Final answer
   x = 90,140.70