Finding the Fourth Proportional to 101,917.91, 140,648.00 and 56,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,917.91 : 140,648.00 = 56,598.72 : x
2. Step 2: Convert to fraction form
   101,917.91/140,648.00 = 56,598.72/x
3. Step 3: Cross multiply
   101,917.91x = 140,648.00 × 56,598.72
4. Step 4: Simplify right side
   101,917.91x = 7,960,495,960.14
5. Step 5: Solve for x
   x = 7,960,495,960.14/101,917.91
6. Step 6: Final answer
   x = 78,106.94