Finding the Fourth Proportional to 101,111, 139,531.12 and 55,787.32

Step by Step Solution

1. Step 1: Write the proportion equation
   101,111 : 139,531.12 = 55,787.32 : x
2. Step 2: Convert to fraction form
   101,111/139,531.12 = 55,787.32/x
3. Step 3: Cross multiply
   101,111x = 139,531.12 × 55,787.32
4. Step 4: Simplify right side
   101,111x = 7,784,067,241.40
5. Step 5: Solve for x
   x = 7,784,067,241.40/101,111
6. Step 6: Final answer
   x = 76,985.37