Finding the Fourth Proportional to 150,777.32, 208,068.90 and 83,705

Step by Step Solution

1. Step 1: Write the proportion equation
   150,777.32 : 208,068.90 = 83,705 : x
2. Step 2: Convert to fraction form
   150,777.32/208,068.90 = 83,705/x
3. Step 3: Cross multiply
   150,777.32x = 208,068.90 × 83,705
4. Step 4: Simplify right side
   150,777.32x = 17,416,407,274.50
5. Step 5: Solve for x
   x = 17,416,407,274.50/150,777.32
6. Step 6: Final answer
   x = 115,510.79