Finding the Fourth Proportional to 101,094.77, 139,448.94 and 64,783.98

Step by Step Solution

1. Step 1: Write the proportion equation
   101,094.77 : 139,448.94 = 64,783.98 : x
2. Step 2: Convert to fraction form
   101,094.77/139,448.94 = 64,783.98/x
3. Step 3: Cross multiply
   101,094.77x = 139,448.94 × 64,783.98
4. Step 4: Simplify right side
   101,094.77x = 9,034,057,339.98
5. Step 5: Solve for x
   x = 9,034,057,339.98/101,094.77
6. Step 6: Final answer
   x = 89,362.27