Finding the Fourth Proportional to 78,797.04, 109,199.94 and 77,301.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,797.04 : 109,199.94 = 77,301.78 : x
2. Step 2: Convert to fraction form
   78,797.04/109,199.94 = 77,301.78/x
3. Step 3: Cross multiply
   78,797.04x = 109,199.94 × 77,301.78
4. Step 4: Simplify right side
   78,797.04x = 8,441,349,737.89
5. Step 5: Solve for x
   x = 8,441,349,737.89/78,797.04
6. Step 6: Final answer
   x = 107,127.75