Finding the Fourth Proportional to 101,414.90, 139,962.75 and 56,096.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,414.90 : 139,962.75 = 56,096.30 : x
2. Step 2: Convert to fraction form
   101,414.90/139,962.75 = 56,096.30/x
3. Step 3: Cross multiply
   101,414.90x = 139,962.75 × 56,096.30
4. Step 4: Simplify right side
   101,414.90x = 7,851,392,412.83
5. Step 5: Solve for x
   x = 7,851,392,412.83/101,414.90
6. Step 6: Final answer
   x = 77,418.53