Finding the Fourth Proportional to 92,670.86, 137,814.14 and 89,718.42

Step by Step Solution

1. Step 1: Write the proportion equation
   92,670.86 : 137,814.14 = 89,718.42 : x
2. Step 2: Convert to fraction form
   92,670.86/137,814.14 = 89,718.42/x
3. Step 3: Cross multiply
   92,670.86x = 137,814.14 × 89,718.42
4. Step 4: Simplify right side
   92,670.86x = 12,364,466,894.46
5. Step 5: Solve for x
   x = 12,364,466,894.46/92,670.86
6. Step 6: Final answer
   x = 133,423.46