Finding the Fourth Proportional to 148,994, 205,611.72 and 81,930.32

Step by Step Solution

1. Step 1: Write the proportion equation
   148,994 : 205,611.72 = 81,930.32 : x
2. Step 2: Convert to fraction form
   148,994/205,611.72 = 81,930.32/x
3. Step 3: Cross multiply
   148,994x = 205,611.72 × 81,930.32
4. Step 4: Simplify right side
   148,994x = 16,845,834,015.35
5. Step 5: Solve for x
   x = 16,845,834,015.35/148,994
6. Step 6: Final answer
   x = 113,063.84