Finding the Fourth Proportional to 101,167.61, 139,619.03 and 55,854.32

Step by Step Solution

1. Step 1: Write the proportion equation
   101,167.61 : 139,619.03 = 55,854.32 : x
2. Step 2: Convert to fraction form
   101,167.61/139,619.03 = 55,854.32/x
3. Step 3: Cross multiply
   101,167.61x = 139,619.03 × 55,854.32
4. Step 4: Simplify right side
   101,167.61x = 7,798,325,002.34
5. Step 5: Solve for x
   x = 7,798,325,002.34/101,167.61
6. Step 6: Final answer
   x = 77,083.22