Finding the Fourth Proportional to 136,300.50, 188,106.21 and 76,696.02

Step by Step Solution

1. Step 1: Write the proportion equation
   136,300.50 : 188,106.21 = 76,696.02 : x
2. Step 2: Convert to fraction form
   136,300.50/188,106.21 = 76,696.02/x
3. Step 3: Cross multiply
   136,300.50x = 188,106.21 × 76,696.02
4. Step 4: Simplify right side
   136,300.50x = 14,426,997,644.28
5. Step 5: Solve for x
   x = 14,426,997,644.28/136,300.50
6. Step 6: Final answer
   x = 105,846.99