Finding the Fourth Proportional to 101,166.61, 139,617.65 and 55,853.32

Step by Step Solution

1. Step 1: Write the proportion equation
   101,166.61 : 139,617.65 = 55,853.32 : x
2. Step 2: Convert to fraction form
   101,166.61/139,617.65 = 55,853.32/x
3. Step 3: Cross multiply
   101,166.61x = 139,617.65 × 55,853.32
4. Step 4: Simplify right side
   101,166.61x = 7,798,109,003.83
5. Step 5: Solve for x
   x = 7,798,109,003.83/101,166.61
6. Step 6: Final answer
   x = 77,081.85