Finding the Fourth Proportional to 141,493.69, 212,189.15 and 77,499.34

Step by Step Solution

1. Step 1: Write the proportion equation
   141,493.69 : 212,189.15 = 77,499.34 : x
2. Step 2: Convert to fraction form
   141,493.69/212,189.15 = 77,499.34/x
3. Step 3: Cross multiply
   141,493.69x = 212,189.15 × 77,499.34
4. Step 4: Simplify right side
   141,493.69x = 16,444,517,631.72
5. Step 5: Solve for x
   x = 16,444,517,631.72/141,493.69
6. Step 6: Final answer
   x = 116,220.86