Finding the Fourth Proportional to 109,736.84, 151,462.42 and 77,915.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,736.84 : 151,462.42 = 77,915.72 : x
2. Step 2: Convert to fraction form
   109,736.84/151,462.42 = 77,915.72/x
3. Step 3: Cross multiply
   109,736.84x = 151,462.42 × 77,915.72
4. Step 4: Simplify right side
   109,736.84x = 11,801,303,507.24
5. Step 5: Solve for x
   x = 11,801,303,507.24/109,736.84
6. Step 6: Final answer
   x = 107,541.86