Finding the Fourth Proportional to 101,298, 139,791.24 and 56,586

Step by Step Solution

1. Step 1: Write the proportion equation
   101,298 : 139,791.24 = 56,586 : x
2. Step 2: Convert to fraction form
   101,298/139,791.24 = 56,586/x
3. Step 3: Cross multiply
   101,298x = 139,791.24 × 56,586
4. Step 4: Simplify right side
   101,298x = 7,910,227,106.64
5. Step 5: Solve for x
   x = 7,910,227,106.64/101,298
6. Step 6: Final answer
   x = 78,088.68