Finding the Fourth Proportional to 94,499.16, 130,287.78 and 77,440.56

Step by Step Solution

1. Step 1: Write the proportion equation
   94,499.16 : 130,287.78 = 77,440.56 : x
2. Step 2: Convert to fraction form
   94,499.16/130,287.78 = 77,440.56/x
3. Step 3: Cross multiply
   94,499.16x = 130,287.78 × 77,440.56
4. Step 4: Simplify right side
   94,499.16x = 10,089,558,644.36
5. Step 5: Solve for x
   x = 10,089,558,644.36/94,499.16
6. Step 6: Final answer
   x = 106,768.77