Finding the Fourth Proportional to 151,056.66, 208,468.38 and 99,981.41

Step by Step Solution

1. Step 1: Write the proportion equation
   151,056.66 : 208,468.38 = 99,981.41 : x
2. Step 2: Convert to fraction form
   151,056.66/208,468.38 = 99,981.41/x
3. Step 3: Cross multiply
   151,056.66x = 208,468.38 × 99,981.41
4. Step 4: Simplify right side
   151,056.66x = 20,842,962,572.82
5. Step 5: Solve for x
   x = 20,842,962,572.82/151,056.66
6. Step 6: Final answer
   x = 137,981.09