Finding the Fourth Proportional to 101,036.48, 139,423.86 and 55,714.79

Step by Step Solution

1. Step 1: Write the proportion equation
   101,036.48 : 139,423.86 = 55,714.79 : x
2. Step 2: Convert to fraction form
   101,036.48/139,423.86 = 55,714.79/x
3. Step 3: Cross multiply
   101,036.48x = 139,423.86 × 55,714.79
4. Step 4: Simplify right side
   101,036.48x = 7,767,971,080.89
5. Step 5: Solve for x
   x = 7,767,971,080.89/101,036.48
6. Step 6: Final answer
   x = 76,882.84