Finding the Fourth Proportional to 94,978.09, 130,383.42 and 81,525.99

Step by Step Solution

1. Step 1: Write the proportion equation
   94,978.09 : 130,383.42 = 81,525.99 : x
2. Step 2: Convert to fraction form
   94,978.09/130,383.42 = 81,525.99/x
3. Step 3: Cross multiply
   94,978.09x = 130,383.42 × 81,525.99
4. Step 4: Simplify right side
   94,978.09x = 10,629,638,036.88
5. Step 5: Solve for x
   x = 10,629,638,036.88/94,978.09
6. Step 6: Final answer
   x = 111,916.73