Finding the Fourth Proportional to 101,888.25, 152,474.82 and 81,848.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,888.25 : 152,474.82 = 81,848.50 : x
2. Step 2: Convert to fraction form
   101,888.25/152,474.82 = 81,848.50/x
3. Step 3: Cross multiply
   101,888.25x = 152,474.82 × 81,848.50
4. Step 4: Simplify right side
   101,888.25x = 12,479,835,304.77
5. Step 5: Solve for x
   x = 12,479,835,304.77/101,888.25
6. Step 6: Final answer
   x = 122,485.52