Finding the Fourth Proportional to 168,888.63, 233,061.06 and 100,890.35

Step by Step Solution

1. Step 1: Write the proportion equation
   168,888.63 : 233,061.06 = 100,890.35 : x
2. Step 2: Convert to fraction form
   168,888.63/233,061.06 = 100,890.35/x
3. Step 3: Cross multiply
   168,888.63x = 233,061.06 × 100,890.35
4. Step 4: Simplify right side
   168,888.63x = 23,513,611,914.77
5. Step 5: Solve for x
   x = 23,513,611,914.77/168,888.63
6. Step 6: Final answer
   x = 139,225.55