Finding the Fourth Proportional to 152,367.06, 210,196.76 and 98,669.40

Step by Step Solution

1. Step 1: Write the proportion equation
   152,367.06 : 210,196.76 = 98,669.40 : x
2. Step 2: Convert to fraction form
   152,367.06/210,196.76 = 98,669.40/x
3. Step 3: Cross multiply
   152,367.06x = 210,196.76 × 98,669.40
4. Step 4: Simplify right side
   152,367.06x = 20,739,988,191.14
5. Step 5: Solve for x
   x = 20,739,988,191.14/152,367.06
6. Step 6: Final answer
   x = 136,118.58