Finding the Fourth Proportional to 101,402.50, 139,929.93 and 56,077.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101,402.50 : 139,929.93 = 56,077.83 : x
2. Step 2: Convert to fraction form
   101,402.50/139,929.93 = 56,077.83/x
3. Step 3: Cross multiply
   101,402.50x = 139,929.93 × 56,077.83
4. Step 4: Simplify right side
   101,402.50x = 7,846,966,826.45
5. Step 5: Solve for x
   x = 7,846,966,826.45/101,402.50
6. Step 6: Final answer
   x = 77,384.36