Finding the Fourth Proportional to 151,085.86, 208,503.57 and 83,105.70

Step by Step Solution

1. Step 1: Write the proportion equation
   151,085.86 : 208,503.57 = 83,105.70 : x
2. Step 2: Convert to fraction form
   151,085.86/208,503.57 = 83,105.70/x
3. Step 3: Cross multiply
   151,085.86x = 208,503.57 × 83,105.70
4. Step 4: Simplify right side
   151,085.86x = 17,327,834,199.64
5. Step 5: Solve for x
   x = 17,327,834,199.64/151,085.86
6. Step 6: Final answer
   x = 114,688.66