Finding the Fourth Proportional to 101,303.96, 139,792.46 and 55,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,303.96 : 139,792.46 = 55,981.50 : x
2. Step 2: Convert to fraction form
   101,303.96/139,792.46 = 55,981.50/x
3. Step 3: Cross multiply
   101,303.96x = 139,792.46 × 55,981.50
4. Step 4: Simplify right side
   101,303.96x = 7,825,791,319.58
5. Step 5: Solve for x
   x = 7,825,791,319.58/101,303.96
6. Step 6: Final answer
   x = 77,250.60