Finding the Fourth Proportional to 141,359.61, 195,071.31 and 77,697

Step by Step Solution

1. Step 1: Write the proportion equation
   141,359.61 : 195,071.31 = 77,697 : x
2. Step 2: Convert to fraction form
   141,359.61/195,071.31 = 77,697/x
3. Step 3: Cross multiply
   141,359.61x = 195,071.31 × 77,697
4. Step 4: Simplify right side
   141,359.61x = 15,156,455,573.07
5. Step 5: Solve for x
   x = 15,156,455,573.07/141,359.61
6. Step 6: Final answer
   x = 107,219.14